Places slimpickns Wants to Go

An off-the-beaten path cave with an underground lake.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A once popular resort—said to be the vacation spot of gangster Al Capone—now remains abandoned in the woods of Arizona.

America's only nuclear missile silo open to the public.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

Limestone caves with spectacular showcase chambers.

This Old West prison built into the side of a cliff was said to be inescapable.