A 315-foot spire jutting out from the Blue Ridge Mountains makes for breathtaking views.

An idyllic mineral hot springs facility with a more-than checkered past.

The world's largest set of the ten commandments lay nestled in the heart of the Great Smoky Mountains.

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

This 19th-century building inadvertently preserved the handprints of its builders within its walls.

Mile-long cave system near Great Smoky Mountains.

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

This former maximum-security prison is creepy, sobering, and supposedly haunted.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

One man’s religious convictions led him to build this stone castle meant to withstand an apocalypse.

The secret city built by the Manhattan Project.