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

Paleoamericans built these ancient walls high in the Colorado Rockies as part of an extensive hunting system.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

Even in death, he's still your huckleberry.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

This gallery of prehistoric red ochre art lines the wall of a scenic segment in Utah's San Rafael Swell.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

The notorious Wild West outlaw was raised in this unassuming abode.

Mine your own precious stones.

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.

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

The stone-covered graves lie within the ruins of an Old West ghost town.

Huge otherworldly domed rocks on the shore of a deadly lake.

An off-grid art installation that encourages its visitors to imagine a world without waste.

Burping, gurgling geothermal mud pots by the Salton Sea.

A remote desert lookout offers unparalleled views of the California badlands for those who brave the trek.

This Pringle-shaped ledge makes for the perfect photo op.

A monument to a one-legged kidnapper, horse thief, and charlatan asks visitors to throw rocks in a pile.

Along a California highway is a kind of Jurassic Park made of metal.

This ancient village provides insight into the complexity of the pre-Columbian Fremont Culture.

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.

This crumbling stump is all that remains of what was once thought to be the oldest living organism.