A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

This geodesic gallery holds a collection of painted spheres that make traditional canvases look lazy by comparison.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

This rustic old building is said to be the most photographed barn in America.

At the time of its completion, it was the tallest dam in the world.

A bizarre house filled with an astounding array of collections.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

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

The only retired U.S. nuclear missile silo that is open to the public.

The crumbling structure is a rare surviving relic of the area's bygone mining industry.

Dance on a hand-hewn log floor padded with bouncy boxcar springs at a saloon built in 1883.

Native Americans built this circle of stones, which was used to predict astronomical events.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

A mountain range on an active U.S. Navy base hides thousands of mysterious prehistoric rock carvings.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

The longest living non-clonal organisms on Earth.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

A new kind of theme park for adults off the Las Vegas Strip.

The hundreds of movies and television shows shot in this high desert town are commemorated in a unique museum.

A tree bears footwear on the loneliest road in America.