No one knows exactly how deep the world’s deepest geothermal hot spring is.

This museum offers an actual time machine back through Colorado's past.

An unusual geological feature towers over the remains of a dark episode in United States history.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

A museum, walk-through diorama, and library nestled under one castle-like roof.

This 19th-century religious artwork was once highly controversial—because it was donated to the church by a divorcee.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

An entire city block built completely out of petrified wood.

A cemetery housing wild west legends in South Dakota.