Symmes Hollow Earth

From the article "Underground" in Classic: All-Star Jam 2004
Military officer John Symmes hypothesized a hollow earth, accessible by a large open area near the Poles. Symmes rejected newtonian gravity He other wrote or wwas satirized by the novel Symzonia, where the hollow earth is inhabited by "a utopian society, run by a benevolent aristocracy, which has long since banished all of their misfits to a distant colony, and possibly the outside Earth. The Symzonians have advanced airships, boats with jet propulsion, flame-proof cloth woven from spiderwebs, and a mysterious weapon of mass destruction."
Category:Hollow Earth