A bizarre house filled with an astounding array of collections.

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

A devilishly named gorge that was a sign of salvation for many pioneers.

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

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

A popular rock that acted as a waymarker for American pioneers.

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

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

This UFO landing strip was created by a charitable Wyoming city that was worried about residents of Jupiter.

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

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

A miraculous natural phenomenon known as "the spring that breathes."

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

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

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

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One man's ambition created this psychedelic log home.

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

A piece of outsider public art accompanied by a strange urban legend.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.