According to the hollow earth theory our planet is hollow with a crust of only about 1200km thick however reports on the crust thickness vary through different hollow earth theories. There is two openings both located at the Poles of our planet and both about 1800km wide. The diameter of these holes is therefore so big that no-one can see across to the other side of the opening or gain the impression that there is a hole in the first place.

At the center of the hollow earth is not the commonly accepted molten core but an inner sun which is about 3500km from the inner surfaces and bathes the inner earth in constant daylight. There exists three worlds on our hollow planet, the outer surface, the middle earth which according to legends is lined with many caverns, tunnels and Inner Cities and people who live there and lastly the Inner Surface.

Gravity in these worlds works like this: For the people who live on the outer surface, Gravity holds them down. For the people that live in the middle earth, the closer they get to the center of the crust (about 400 miles down), the less effect gravity will have upon them.

In the fabeled book, "Etidorhpa", where an individual travels down into the earth reaches the center of gravity, i.e. where there is no gravity - he was able to move by the power of his mind, his heart stop beating and he didn't need to eat. He described gigantic vegetation that lives under the earth as this lesser pull of gravity allows things to grow larger. Lastly for the people who live on the inner surface, they would feel gravity pull on them to walk on this. There is supposedly land masses and water bodies that exist on the Inner Earth, the same as the outer surface except the vibration and energy in the Inner Earth is more pure and of a higher vibrational frequency .

People who claim to have travelled to the inside of the hollow earth state that they have encountered very tall people who live in this inner earth utopia in eternal daylight and have been doing so for thousands of years. Some hollow earth stories say that these people are thousands of years ahead of our technological and or spiritual development and claim that they are descendants of Atlantis or Lemuria. Others claim alien races came to earth and now live in the inner earth and that this explains a lot of the UFO sightings we experience in our outer world these days.