The Earth is hollow and there are people living inside - including descendants of survivors from Atlantis and Lemuria. The outer crust is 800 - 1000 miles thick and there is a hole at each pole of approximately 1,400 miles in diameter, out of which flying saucers come from time to time. In the middle of the hollow earth is a small central sun, which provides the inhabitants with light and warmth.The emissions from the central sun are also responsible for the Aurora, observed near the poles. The two holes are normally hidden by a thick cloud cover, but on occasion they can be seen.
http://www.surfingtheapocalypse.com/unexplained.html#hollowearth
http://www.surfingtheapocalypse.com/unexplained.html#hollowearth