A Mars simulation in the southern Utah desert.

This quiet park's strange sedimentary spires were named after Kodak's color film.

A replica that won't float away.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

Dig for your own trilobites in this goldmine of invertebrates.

One man's ambition created this psychedelic log home.

This Wyoming town is fascinated by a particular mythical creature.

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.

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

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

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

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

This geothermal hot spring hides beneath a slowly growing mineral dome.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

The juke joint where legendary soul artists ate, drank, and made merry.

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

Nestled amid the peaks and lochs of the Scottish Highlands, this inn and pub has played host to outlaws and ghosts.