This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

A spiritual vortex among the red rocks in Sedona.

A stealthy Apache hideaway that became the haunting site of a mass grave.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Central City celebrates its most famous madam by racing beds down Main Street.

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.

A fake mine that was made using real mining techniques which is also used as a community center.

This interpretive path lets you get up close and personal with dinosaur bones.

This super steep hike ascends 2,000 feet in less than a mile.

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

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

A beautiful geyser under environmental threat.

An architect's childhood fantasy treehouse made real.

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

Supposedly Satanic numbers adorn this preserved submarine sail.

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

The site of a defunct mill, that once supplied marble for the construction of the Lincoln Memorial.

A hotel with a rich Wild West history of miners and bootleggers.

A recreation of an Old West apothecary full of curios.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.