When I first started learning about Dungeons and Dragons, one of the things I found interesting is that most of the action took place in environments below the surface. I could imagine people playing in hundreds for different caverns and caves. With that amount of locations it could fill a small world. So I began thinking of such a planet where the entire volume is filled with nothing but mazes of rooms. The levels would be layered like an onion. Of course, the levels closest to the center would have less gravity. One of the things I added to this is a tunnel through the center that leads straight from pole to pole. This would be a bottomless pit since it would have no bottom and that after some one falling passes the center they would be pulled back.
-- the great unknown, Jun 21 2007

small model http://sketchup.goo...04748e2564acf77ffde
a 3D model to illustrate my vision. this is a smaller example fo the planet. [the great unknown, Jun 21 2007]

Gateway. http://en.wikipedia...Gateway_%28novel%29
[Galbinus_Caeli, Jun 21 2007]

Sounds like Gateway.
-- Galbinus_Caeli, Jun 21 2007


GC, can you offer a link to expand your claim? I tried google/wiki and I got a lot of different stuff.
-- the great unknown, Jun 21 2007


Linked. Also "Phage Rock" in Iain M. Banks _Excession_. "Ra" in Gregory Benford's _Across the Sea of Suns_
-- Galbinus_Caeli, Jun 21 2007



random, halfbakery