User blog comment:Getgroundhog/The biggest plot hole in Skyrim?/@comment-4113369-20120823125039/@comment-4113369-20120824141946

I'm fairly certain it's a truncated triakis tetrahedron, actually. It's just that nobody notices since Tamriel is in the middle of one of the surfaces. Atmora, on the other hand, is rather hard to cross from end to end without falling into the void because of its placement. That's why the Nedes originally left Atmora. They couldn't go further north, so they had to cross the sea to the south instead. Every five years or so, for over a century, they would send a few boats filled with newborns to colonize the new world. It worked out pretty well, all things considered.