# BONG! What’s that? It’s just Hollow Earth Theory

- Source: https://www.auricmedia.net/bong-whatss-that-its-just-hollow-earth-theory/
- Published: 2013-09-03T05:51:58+00:00
- Categories: Hollow Earth

This story has puzzled me sometime and I just can't figure it out. This is Hollow Earth theory and that there lives creatures or aliens below our feet. I have posted something about this before in a post where I told you about Operation High Jump:

[https://www.auricmedia.net/ophjp-whats-that-operation-highjump-of-course/](https://www.auricmedia.net/ophjp-whats-that-operation-highjump-of-course/)

But here I focuse more about the facts about Hollow Earth theory.
**

[*](http://en.wikipedia.org/wiki/File:Atvatabar.jpg)

[![](http://bits.wikimedia.org/static-1.22wmf12/skins/common/images/magnify-clip.png)](http://en.wikipedia.org/wiki/File:Atvatabar.jpg)


A map of the Interior World, from The Goddess of Atvatabar* (1892).







The Hollow Earth**[hypothesis](http://en.wikipedia.org/wiki/Hypothesis) proposes that the planet [Earth](http://en.wikipedia.org/wiki/Earth) is either entirely hollow or otherwise contains a substantial interior space. The hypothesis has been shown to be wrong by observational [evidence](http://en.wikipedia.org/wiki/Scientific_evidence), as well as by the modern understanding of [planet formation](http://en.wikipedia.org/wiki/Planet_formation); the [scientific community](http://en.wikipedia.org/wiki/Scientific_community) has dismissed the notion since at least the late 18th century.

The concept of a hollow Earth still recurs in [folklore](http://en.wikipedia.org/wiki/Folklore) and as the premise for [subterranean fiction](http://en.wikipedia.org/wiki/Subterranean_fiction), a subgenre of [adventure fiction](http://en.wikipedia.org/wiki/Adventure_fiction). It is also featured in some present-day [pseudoscientific](http://en.wikipedia.org/wiki/Pseudoscience) and [conspiracy theories](http://en.wikipedia.org/wiki/Conspiracy_theory).

## Hypotheses



### Ancient history


In ancient times, the concept of a subterranean land inside the earth appeared in [mythology](http://en.wikipedia.org/wiki/Mythology), [folklore](http://en.wikipedia.org/wiki/Folklore) and [legends](http://en.wikipedia.org/wiki/Legend). The idea of subterranean realms seemed arguable, and became intertwined with the concept of "places" of origin or afterlife, such as the [Greek underworld](http://en.wikipedia.org/wiki/Greek_underworld), the [Nordic](http://en.wikipedia.org/wiki/Norse_mythology)[Svartálfaheimr](http://en.wikipedia.org/wiki/Svart%C3%A1lfaheimr), the Christian [Hell](http://en.wikipedia.org/wiki/Hell), and the Jewish [Sheol](http://en.wikipedia.org/wiki/Sheol) (with details describing inner Earth in [Kabalistic](http://en.wikipedia.org/wiki/Kabbalah) literature, such as the [Zohar](http://en.wikipedia.org/wiki/Zohar) and Hesed L'Avraham). The idea of a subterranean realm is also mentioned in [Tibetan Buddhism](http://en.wikipedia.org/wiki/Tibetan_Buddhism) belief,[[1]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-1)[[2]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-ReferenceA-2) according to one story there is an ancient city called [Shamballa](http://en.wikipedia.org/wiki/Shamballa) which is located inside the earth.[[2]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-ReferenceA-2)

According to the [Ancient Greeks](http://en.wikipedia.org/wiki/Ancient_Greece) there were [caverns](http://en.wikipedia.org/wiki/Caverns) under the surface which were entrances leading to the [underworld](http://en.wikipedia.org/wiki/Underworld), some of which were the caverns at [Tainaron](http://en.wikipedia.org/wiki/Tainaron) in [Lakonia](http://en.wikipedia.org/wiki/Lakonia), at Trozien in [Argolis](http://en.wikipedia.org/wiki/Argolis), at Ephya in [Thesprotia](http://en.wikipedia.org/wiki/Thesprotia), at Herakleia in [Pontos](http://en.wikipedia.org/wiki/Pontos), and in [Ermioni](http://en.wikipedia.org/wiki/Ermioni).[[3]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-3) In [Thracians](http://en.wikipedia.org/wiki/Thracians) and [Dacians](http://en.wikipedia.org/wiki/Dacians) legend it is said that there are underground [chambers](http://en.wikipedia.org/wiki/Environmental_chamber) occupied by an ancient God called [Zalmoxis](http://en.wikipedia.org/wiki/Zalmoxis).[[4]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-4) In [Mesopotamian religion](http://en.wikipedia.org/wiki/Mesopotamian_religion) there is a story of a man who, after traveling through the darkness of a tunnel in the mountain of "Mashu", entered a subterranean garden.[[5]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-5)

In [Celtic mythology](http://en.wikipedia.org/wiki/Celtic_mythology) there is a legend of a cave called "[Cruachan](http://en.wikipedia.org/wiki/Cruachan,_Ireland)," also known as "Ireland's gate to Hell," a legendary and ancient cave from which according to legend strange creatures would emerge in ancient times and be seen on the surface of the earth.[[6]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-6) There are also stories of [medieval](http://en.wikipedia.org/wiki/Medieval)[knights](http://en.wikipedia.org/wiki/Knights) and [saints](http://en.wikipedia.org/wiki/Saints) who went on [pilgrimages](http://en.wikipedia.org/wiki/Pilgrimages) to a cave located in [Station Island](http://en.wikipedia.org/wiki/Station_Island), [County Donegal](http://en.wikipedia.org/wiki/County_Donegal) in Ireland, where they made journeys inside the earth into a place of [purgatory](http://en.wikipedia.org/wiki/Purgatory).[[7]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-7) There is an Irish myth which says tunnels in [County Down](http://en.wikipedia.org/wiki/County_Down), Northern Ireland lead to the land of the subterranean [Tuatha de Danaan](http://en.wikipedia.org/wiki/Tuatha_de_Danaan), a group of people who are believed to have introduced [Druidism](http://en.wikipedia.org/wiki/Druidism) to Ireland, and then went back underground.[[8]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-8)

An ancient [legend](http://en.wikipedia.org/wiki/Legend) of the [Angami Naga](http://en.wikipedia.org/wiki/Angami_Naga) tribes of [India](http://en.wikipedia.org/wiki/India) claim that their [ancestors](http://en.wikipedia.org/wiki/Ancestors) emerged in ancient times from a subterranean land inside the earth.[[9]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-9) There are legends from the [Taíno people](http://en.wikipedia.org/wiki/Ta%C3%ADno_people) that their ancestors emerged in ancient times from two caves in a mountain underground.[[10]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-10)

It is the belief of the natives of the Malinowski's [Trobriand Islands](http://en.wikipedia.org/wiki/Trobriand_Islands) that their ancestors had come from a subterranean land through a cavern hole called "Obukula".[[11]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-11) There is an ancient legend held in Mexican folklore that a cave in a mountain five miles south of [Ojinaga](http://en.wikipedia.org/wiki/Ojinaga), Mexico is possessed by devilish creatures who came from inside the earth.[[12]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-12)

There was an ancient myth held in the [middle ages](http://en.wikipedia.org/wiki/Middle_ages) that some mountains located between [Eisenach](http://en.wikipedia.org/wiki/Eisenach) and [Gotha](http://en.wikipedia.org/wiki/Gotha_%28town%29) in Germany hold a portal to the inner earth. There is an old Russian legend that says the [Samoyeds](http://en.wikipedia.org/wiki/Samoyeds), an ancient [Siberian](http://en.wikipedia.org/wiki/Siberian)[tribe](http://en.wikipedia.org/wiki/Tribe), traveled to an underground cavern city to live inside the earth.[[13]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-13)

In [Native American mythology](http://en.wikipedia.org/wiki/Native_American_mythology), it is said that the ancestors of the [Mandan people](http://en.wikipedia.org/wiki/Mandan_people) in ancient times emerged from a subterranean land through a cave at the north side of the [Missouri River](http://en.wikipedia.org/wiki/Missouri_River).[[14]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-14) There is also a tale about a tunnel in the [San Carlos Apache Indian Reservation](http://en.wikipedia.org/wiki/San_Carlos_Apache_Indian_Reservation) in [Arizona](http://en.wikipedia.org/wiki/Arizona) near [Cedar Creek](http://en.wikipedia.org/wiki/Help:Disambiguation) which is said to lead inside the earth to a land inhabited by a mysterious tribe.[[15]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-15) It is also the belief of the [tribes](http://en.wikipedia.org/wiki/Tribe) of [Iroquois](http://en.wikipedia.org/wiki/Iroquois) that their ancient ancestors emerged from a subterranean world inside the earth.[[16]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-16) The elders of the [Hopi people](http://en.wikipedia.org/wiki/Hopi_people) believe that a [Sipapu](http://en.wikipedia.org/wiki/Sipapu) entrance in the [Grand Canyon](http://en.wikipedia.org/wiki/Grand_Canyon) exists which leads to the [underworld](http://en.wikipedia.org/wiki/Underworld).[[17]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-17)[[18]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-18)

According to [South American](http://en.wikipedia.org/wiki/South_American) mythology the belief of the [Brazilian Indians](http://en.wikipedia.org/wiki/Brazilian_Indians), who live alongside the [Parima River](http://en.wikipedia.org/wiki/Parima_River) in Brazil, claim that their forefathers emerged in ancient times from an underground land, and that many of their ancestors still remained inside the earth. There are also legends that say the ancestors of the [Inca Empire](http://en.wikipedia.org/wiki/Inca_Empire) came from underground caves which are located east of [Cuzco](http://en.wikipedia.org/wiki/Cuzco), Peru.[[19]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-19)

### 17th and 18th centuries


[Edmond Halley](http://en.wikipedia.org/wiki/Edmond_Halley) in 1692[[20]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-halley-20) put forth the idea of Earth consisting of a hollow shell about 800 km (500 mi) thick, two inner concentric shells and an innermost core, about the diameters of the planets Venus, Mars, and Mercury. Atmospheres separate these shells, and each shell has its own magnetic poles. The spheres rotate at different speeds. Halley proposed this scheme in order to explain anomalous compass readings. He envisaged the [atmosphere](http://en.wikipedia.org/wiki/Celestial_body_atmosphere) inside as [luminous](http://en.wikipedia.org/wiki/Luminosity) (and possibly inhabited) and speculated that escaping gas caused the [Aurora Borealis](http://en.wikipedia.org/wiki/Aurora_Borealis).[[21]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-halley2-21)

[De Camp](http://en.wikipedia.org/wiki/L._Sprague_de_Camp) and [Ley](http://en.wikipedia.org/wiki/Willy_Ley) have claimed (in their *[Lands Beyond](http://en.wikipedia.org/wiki/Lands_Beyond)*) that [Leonhard Euler](http://en.wikipedia.org/wiki/Leonhard_Euler) also proposed a hollow-Earth idea, getting rid of multiple shells and postulating an interior sun 1,000 km (620 mi) across to provide light to advanced inner-Earth civilization but they provide no references; indeed, Euler did not propose a hollow-Earth, but there is a slightly related [thought experiment](http://en.wikipedia.org/wiki/Thought_experiment).[[22]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-22)

De Camp and Ley also claim that [Sir John Leslie](http://en.wikipedia.org/wiki/Sir_John_Leslie) expanded on Euler's idea, suggesting two central suns named Pluto and Proserpine (this was unrelated to the dwarf planet [Pluto](http://en.wikipedia.org/wiki/Pluto), which was discovered and named some time later). Leslie did propose a hollow Earth in his 1829 *Elements of Natural Philosophy* (pp. 449–453), but does not mention interior suns.

[Le Clerc Milfort](http://en.wikipedia.org/wiki/Le_Clerc_Milfort) in 1781 led a journey with hundreds of [Creek Indians](http://en.wikipedia.org/wiki/Creek_Indians) to a series of [caverns](http://en.wikipedia.org/wiki/Caverns) near the [Red River](http://en.wikipedia.org/wiki/Red_River_%28Mississippi_River%29) above the junction of the [Mississippi river](http://en.wikipedia.org/wiki/Mississippi_river), according to Milfort the original Creek Indian ancestors are believed to have emerged out to the surface of the earth in ancient times from the caverns. Milfort also claimed the caverns they saw "could easily contain 15,000 – 20,000 families."[[23]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-23)[[24]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-24)

### 19th century


In 1818, [John Cleves Symmes, Jr.](http://en.wikipedia.org/wiki/John_Cleves_Symmes,_Jr.) suggested that the Earth consisted of a hollow shell about 1,300 km (810 mi) thick, with openings about 2,300 km (1,400 mi) across at both [poles](http://en.wikipedia.org/wiki/Geographical_pole) with 4 inner shells each open at the poles. Symmes became the most famous of the early Hollow Earth proponents. He proposed making an expedition to the [North Pole](http://en.wikipedia.org/wiki/North_Pole) hole, thanks to efforts of one of his followers, [James McBride](http://en.wikipedia.org/wiki/James_McBride_%28pioneer%29). United States president [John Quincy Adams](http://en.wikipedia.org/wiki/John_Quincy_Adams) indicated he would approve of this but he left office before this could occur. The new President of the United States, [Andrew Jackson](http://en.wikipedia.org/wiki/Andrew_Jackson), halted the attempt. It is possible this is the source of the (untrue) legend that Jackson believed in a [Flat Earth](http://en.wikipedia.org/wiki/Flat_Earth), and was consequently the only United States president to do so.

[Jeremiah Reynolds](http://en.wikipedia.org/wiki/Jeremiah_N._Reynolds) also delivered lectures on the "Hollow Earth" and argued for an expedition. Reynolds went on an expedition to Antarctica himself but missed joining the [Great U.S. Exploring Expedition](http://en.wikipedia.org/wiki/Wilkes_Expedition) of 1838–1842, even though that venture was a result of his agitation.

Though Symmes himself never wrote a book about his ideas, several authors published works discussing his ideas. McBride wrote *Symmes' Theory of Concentric Spheres* in 1826. It appears that Reynolds has an article that appeared as a separate booklet in 1827: *Remarks of Symmes' Theory Which Appeared in the American Quarterly Review.* In 1868, a professor W.F. Lyons published *The Hollow Globe* which put forth a Symmes-like Hollow Earth hypothesis, but failed to mention Symmes himself. Symmes's son Americus then published *The Symmes' Theory of Concentric Spheres* in 1878 to set the record straight.

### 20th century


An early twentieth-century proponent of hollow Earth, William Reed, wrote *[Phantom of the Poles](http://en.wikipedia.org/wiki/Phantom_of_the_Poles)* in 1906. He supported the idea of a hollow Earth, but without interior shells or inner sun.

The [spiritualist](http://en.wikipedia.org/wiki/Spiritualist) writer [Walburga, Lady Paget](http://en.wikipedia.org/wiki/Walburga,_Lady_Paget) in her book *Colloquies with an unseen friend* (1907) was an early writer to mention the hollow earth theory. She claimed that cities exist beneath a [desert](http://en.wikipedia.org/wiki/Desert), which is where the people of [Atlantis](http://en.wikipedia.org/wiki/Atlantis) moved. She said an entrance to the subterranean kingdom will be discovered in the 21st century.[[25]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-25)

[William Fairfield Warren](http://en.wikipedia.org/wiki/William_Fairfield_Warren), in his book, *Paradise Found: The Cradle of the Human Race at the North Pole* presented his belief that humanity originated on a continent in the Arctic called [Hyperborea](http://en.wikipedia.org/wiki/Hyperborea). This influenced some early hollow earth theorists. According to Marshall Gardner, both the [Eskimo](http://en.wikipedia.org/wiki/Eskimo) and [Mongolian peoples](http://en.wikipedia.org/wiki/Mongolian_peoples) had come from the interior of the earth by an entrance at the [North pole](http://en.wikipedia.org/wiki/North_pole).[[26]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-26)

Marshall Gardner wrote *A Journey to the Earth's Interior* in 1913 and published an expanded edition in 1920. He placed an interior sun in the Earth and built a working model of the hollow Earth which patented ([U.S. Patent 1,096,102](http://www.google.com/patents/US1096102)). Gardner made no mention of Reed, but did criticize Symmes for his ideas. About the same time [Vladimir Obruchev](http://en.wikipedia.org/wiki/Vladimir_Obruchev) wrote a novel *Plutonia*, in which the hollow Earth possessed an inner sun and was inhabited by prehistoric species. The interior was connected with the surface by an opening in the [Arctic](http://en.wikipedia.org/wiki/Arctic).

[Explorer](http://en.wikipedia.org/wiki/Explorer)[Ferdynand Ossendowski](http://en.wikipedia.org/wiki/Ferdynand_Ossendowski) wrote a book in 1922 titled *Beasts, Men and Gods*. Ossendowski said he was told about a subterranean kingdom exists inside the earth. It was known to [Buddhists](http://en.wikipedia.org/wiki/Buddhists) as [Agharti](http://en.wikipedia.org/wiki/Agharti).[[27]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-27)

[George Papashvily](http://en.wikipedia.org/wiki/George_Papashvily) in his *Anything Can Happen* (1940) claimed the discovery in the [Caucasus mountains](http://en.wikipedia.org/wiki/Caucasus_mountains) of a cavern containing human [skeletons](http://en.wikipedia.org/wiki/Skeletons) "with heads as big as bushel baskets" and an ancient tunnel leading to the centre of the earth. One man entered the tunnel and never returned.[[28]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-28)

Novelist [Lobsang Rampa](http://en.wikipedia.org/wiki/Lobsang_Rampa) in his book *The Cave of the Ancients* said an underground chamber system exists beneath the [Himalayas](http://en.wikipedia.org/wiki/Himalayas) of [Tibet](http://en.wikipedia.org/wiki/Tibet), filled with ancient [machinery](http://en.wikipedia.org/wiki/Machinery), [records](http://en.wikipedia.org/wiki/Document) and [treasure](http://en.wikipedia.org/wiki/Treasure).[[29]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-29)[Michael Grumley](http://en.wikipedia.org/wiki/Michael_Grumley) a [cryptozoologist](http://en.wikipedia.org/wiki/Cryptozoologist) has linked [Bigfoot](http://en.wikipedia.org/wiki/Bigfoot) and other [hominid](http://en.wikipedia.org/wiki/Hominid)[cryptids](http://en.wikipedia.org/wiki/Cryptids) to ancient tunnel systems [underground](http://en.wiktionary.org/wiki/underground).[[30]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-30)

[Douglas Baker](http://en.wikipedia.org/wiki/Douglas_Baker) wrote in one of his books that he had an [astral journey](http://en.wikipedia.org/wiki/Astral_journey) to the inner earth where he observed a subterranean civilization.[[31]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-31) Other [occult](http://en.wikipedia.org/wiki/Occult) writers such as [Guy Ballard](http://en.wikipedia.org/wiki/Guy_Ballard) and [Alice Bailey](http://en.wikipedia.org/wiki/Alice_Bailey) have written that they have had [out of body experiences](http://en.wikipedia.org/wiki/Out_of_body_experiences) and met mysterious beings inside of the earth.

According to the [ancient astronaut](http://en.wikipedia.org/wiki/Ancient_astronaut) writer [Peter Kolosimo](http://en.wikipedia.org/wiki/Peter_Kolosimo) a [robot](http://en.wikipedia.org/wiki/Robot) was seen entering a subterranean tunnel below a [monastery](http://en.wikipedia.org/wiki/Monastery) in Mongolia, he also claimed a light was seen from underground in Azerbaijan.[[32]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-32) Kolosimo and other ancient astronaut writers such as [Robert Charroux](http://en.wikipedia.org/wiki/Robert_Charroux) linked these activities to UFOs.

A book allegedly by a "Dr. [Raymond Bernard](http://en.wikipedia.org/wiki/Raymond_W._Bernard)" which appeared in 1964, *The Hollow Earth*, exemplifies the idea of UFOs coming from inside the earth. The book rehashes Reed and Gardner's ideas and ignores Symmes. Bernard also adds his own ideas: the [Ring Nebula](http://en.wikipedia.org/wiki/Ring_Nebula) proves the existence of hollow worlds, as well as speculation on the fate of [Atlantis](http://en.wikipedia.org/wiki/Atlantis) and the origin of flying saucers. Bernard argued that the inhabitants of Atlantis took refuge in the Earth's interior before the city was destroyed in great calamity.[[33]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-reece-33) It was Atlanteans who piloted the flying machines known in ancient India as vimanas and in the modern world as flying saucers.[[33]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-reece-33) After the US bombings of Hiroshima and Nagasaki, Bernard claimed, the Atlanteans became concerned that radioactive air might flow into the world's interior, and so some emerged in their flying saucers in an act of self-defense.[[33]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-reece-33) An article by [Martin Gardner](http://en.wikipedia.org/wiki/Martin_Gardner) revealed that Dr. Walter Siegmeister used the pseudonym `Bernard', but not until the publishing of Walter Kafton-Minkel's *Subterranean Worlds: 100,000 years of dragons, dwarves, the dead, lost races & UFOs from inside the Earth*, in 1989, did the full story of Bernard/Siegmeister become well known.[[34]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-34)

The pages of the science fiction [pulp magazine](http://en.wikipedia.org/wiki/Pulp_magazine)*[Amazing Stories](http://en.wikipedia.org/wiki/Amazing_Stories)* promoted one such idea from 1945 to 1949 as "the Shaver Mystery". The magazine's editor, [Ray Palmer](http://en.wikipedia.org/wiki/Raymond_A._Palmer), ran a series of stories by [Richard Sharpe Shaver](http://en.wikipedia.org/wiki/Richard_Sharpe_Shaver) supposedly claimed as factual, though presented in the context of fiction. Shaver claimed that a superior pre-historic race had built a [honeycomb](http://en.wikipedia.org/wiki/Honeycomb) of caves in the Earth, and that their degenerate descendants, known as "Dero", live there still, using the fantastic machines abandoned by the ancient races to torment those of us living on the surface. As one characteristic of this torment, Shaver described "voices" that purportedly came from no explainable source. Thousands of readers wrote to affirm that they, too, had heard the fiendish voices from inside the Earth. The writer [David Hatcher Childress](http://en.wikipedia.org/wiki/David_Hatcher_Childress) authored *Lost Continents and the Hollow Earth* (1998) in which he reprinted the stories of Palmer and defended the hollow earth idea based on alleged tunnel systems beneath South America and central Asia.[[35]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-35)

Hollow earth theorists have claimed a number of different [locations](http://en.wikipedia.org/wiki/Locations) for the entrances which lead inside the earth. Other than the North and South poles, entrances in locations which have been cited include: Paris in France,[[36]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-36)[Staffordshire](http://en.wikipedia.org/wiki/Staffordshire) in England,[[37]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-37)[Montreal](http://en.wikipedia.org/wiki/Montreal) in Canada,[[38]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-38)[Hangchow](http://en.wikipedia.org/wiki/Hangchow) in China,[[39]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-39) and the [Amazon Rainforest](http://en.wikipedia.org/wiki/Amazon_Rainforest).[[40]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-40)

Fantastic stories (supposedly believed as factual within [fringe circles](http://en.wikipedia.org/wiki/Fringe_culture)) have also circulated that Adolf Hitler and some of his followers escaped to hollow lands within the Earth after World War II via an entrance in Antarctica. (See also Hitler's supposed adherence to concave hollow-Earth ideas, below.)

Some writers have proposed building [megastructures](http://en.wikipedia.org/wiki/Megastructure) that have some similarities to a hollow Earth – see [Dyson sphere](http://en.wikipedia.org/wiki/Dyson_sphere), [Globus Cassus](http://en.wikipedia.org/wiki/Globus_Cassus).

### 21st century


In 2011, Horatio Valens and Paul Veneti presented a two-hour "Lazeria Map Collection" video on centuries-old maps of the Arctic region and the North Pole, making a case for a 100-mile wide canyon in the center of the physical North Pole, into which north-flowing rivers drain into a hollow Earth.[[41]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-41) The maps were collected by Harry Hubbard.[[42]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-42)

### Concave hollow Earths


Instead of saying that humans live on the outside surface of a hollow planet — sometimes called a "convex" hollow-Earth hypothesis — some have claimed humans live on the *inside* surface of a hollow [spherical](http://en.wikipedia.org/wiki/Spherical) world, so that our universe itself lies in that world's interior. This has been called the "concave" hollow-Earth hypothesis.

[Cyrus Teed](http://en.wikipedia.org/wiki/Cyrus_Teed), a doctor from upstate New York, proposed such a concave hollow Earth in 1869, calling his scheme "Cellular Cosmogony". Teed founded a group called the [Koreshan Unity](http://en.wikipedia.org/wiki/Koreshan_Unity) based on this notion, which he called [Koreshanity](http://en.wikipedia.org/wiki/Koreshanity). The main colony survives as a preserved Florida state historic site, at [Estero, Florida](http://en.wikipedia.org/wiki/Estero,_Florida), but all of Teed's followers have now died. Teed's followers claimed to have experimentally verified the concavity of the Earth's curvature, through surveys of the Florida coastline making use of "rectilineator" equipment.

Several twentieth-century German writers, including [Peter Bender](http://en.wikipedia.org/w/index.php?title=Peter_Bender&action=edit&redlink=1), [Johannes Lang](http://en.wikipedia.org/w/index.php?title=Johannes_Lang&action=edit&redlink=1), [Karl Neupert](http://en.wikipedia.org/w/index.php?title=Karl_Neupert&action=edit&redlink=1), and [Fritz Braun](http://en.wikipedia.org/w/index.php?title=Fritz_Braun&action=edit&redlink=1), published works advocating the hollow Earth hypothesis, or *Hohlweltlehre*. It has even been reported, although apparently without historical documentation, that Adolf Hitler was influenced by concave hollow-Earth ideas and sent an expedition in an unsuccessful attempt to spy on the British fleet by pointing infrared cameras up at the sky.[[43]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-43)[[44]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-44)

The [Egyptian](http://en.wikipedia.org/wiki/Egypt) mathematician [Mostafa Abdelkader](http://en.wikipedia.org/w/index.php?title=Mostafa_A._Abdelkader&action=edit&redlink=1) wrote several scholarly papers working out a detailed mapping of the concave Earth model.[[45]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-45)[[46]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-46)

In one chapter of his book *On the Wild Side* (1992), [Martin Gardner](http://en.wikipedia.org/wiki/Martin_Gardner) discusses the hollow Earth model articulated by Abdelkader. According to Gardner, this hypothesis posits that light rays travel in circular paths, and slow as they approach the center of the spherical star-filled cavern. No energy can reach the center of the cavern, which corresponds to no point a finite distance away from Earth in the widely accepted scientific cosmology. A drill, Gardner says, would lengthen as it traveled away from the cavern and eventually pass through the "point at infinity" corresponding to the center of the Earth in the widely accepted scientific cosmology. Supposedly no experiment can distinguish between the two cosmologies.

Gardner notes that "most mathematicians believe that an inside-out universe, with properly adjusted physical laws, is empirically irrefutable". Gardner rejects the concave hollow Earth hypothesis on the basis of [Occam's Razor](http://en.wikipedia.org/wiki/Occam%27s_Razor).[[47]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-47)

Purportedly verifiable hypotheses of a "concave hollow Earth" need to be distinguished from a thought experiment which defines a [coordinate](http://en.wikipedia.org/wiki/Coordinates_%28elementary_mathematics%29) transformation such that the interior of the Earth becomes "exterior" and the exterior becomes "interior". (For example, in spherical coordinates, let radius *r* go to *R*²/*r* where *R* is the Earth's radius.) The transformation entails corresponding changes to the forms of physical laws. This is not a hypothesis but an illustration of the fact that any description of the physical world can be equivalently expressed in more than one way.[[48]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-gardnertransformation-48)

## Contrary evidence



### Seismic


The picture of the [structure of the earth](http://en.wikipedia.org/wiki/Structure_of_the_earth) that has been arrived at through the study of [seismic waves](http://en.wikipedia.org/wiki/Seismic_waves)[[49]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-press-49) is quite different from the hollow earth theory. The Earth's interior is made up of layers of molten rock and various elements, in the mantle and core.[[50]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-50)

### Gravity


Another set of scientific arguments against a hollow Earth or any hollow planet comes from [gravity](http://en.wikipedia.org/wiki/Gravity). Massive objects tend to clump together gravitationally, creating non-hollow spherical objects we call stars and planets. The solid sphere is the best way in which to minimize the [gravitational potential energy](http://en.wikipedia.org/wiki/Gravitational_potential_energy) of a physical object; having hollowness is unfavorable in the energetic sense. In addition, ordinary matter is not strong enough to support a hollow shape of planetary size against the force of gravity; a planet-sized hollow shell with the known, observed thickness of the Earth's crust, would not be able to achieve [hydrostatic equilibrium](http://en.wikipedia.org/wiki/Hydrostatic_equilibrium) with its own mass and would collapse.

Someone on the inside of a hollow Earth would not experience a significant outward pull and could not easily stand on the inner surface; rather, the theory of gravity implies that a person on the inside would be nearly [weightless](http://en.wikipedia.org/wiki/Weightlessness). This was first shown by [Newton](http://en.wikipedia.org/wiki/Isaac_Newton), whose [shell theorem](http://en.wikipedia.org/wiki/Shell_theorem) mathematically predicts a gravitational force (from the shell) of zero everywhere inside a spherically symmetric hollow shell of matter, regardless of the shell's thickness. A tiny gravitational force would arise from the fact that the Earth does not have a perfectly symmetrical spherical shape, as well as forces from other bodies such as the [Moon](http://en.wikipedia.org/wiki/Moon). The [centrifugal force](http://en.wikipedia.org/wiki/Centrifugal_force) from the Earth's rotation would pull a person (on the inner surface) outwards if the person was traveling at the same velocity as the Earth's interior and was in contact with the ground on the interior, but even the maximum centrifugal force at the [equator](http://en.wikipedia.org/wiki/Equator) is only 1/300 of ordinary Earth gravity.

The mass of the planet also indicates that the hollow Earth hypothesis is unfeasible. Should the Earth be largely hollow, its mass would be much lower and thus its gravity on the outer surface would be much lower than it is.

### Direct observation


The deepest hole drilled to date is the SG-3 [borehole](http://en.wikipedia.org/wiki/Borehole) which is 12.3 km (7.6 mi)[[51]](http://en.wikipedia.org/wiki/Hollow_Earth#cite_note-51) deep, part of the [Soviet](http://en.wikipedia.org/wiki/Soviet_Union)[Kola Superdeep Borehole](http://en.wikipedia.org/wiki/Kola_Superdeep_Borehole) project; thus, visual knowledge of the Earth's structure extends that far.

[Source](http://en.wikipedia.org/wiki/Hollow_Earth)


Here is some videos about Hollow Earth Theory and more:

 

Here's a video about how Earth might be hollow and it has openings on the poles. And how Nazis used these openings:

 

And here Shield Of The Son talks about Hollow Earth:

 

So there you have some information to grasp on and remember as always... you decide what is the Turth I just offer you some information where you can start your own search of the Truth.

 
"Truth crushed to earth shall rise again."
WILLIAM CULLEN BRYANT, The Battle-Field