Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world’s largest coastal brick fortresses.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

On the Oregon coast is a natural hole that seems to be draining the sea.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A modernist landscape of water and sci-fi concrete.

Final resting place of Geronimo, Quanah Parker, and the first atomic gun ever fired.

World's smallest skyscraper, the product of a remarkable con.