The eroded core of an ancient volcano is now accessible by a short hike.

Legend says train robbers stashed their gold within the depths of this unusual cave.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

More than 300 years ago, a revolt at this Hopi pueblo shaped the future of the American Southwest.

This Old West prison built into the side of a cliff was said to be inescapable.

The remote resting place of a notorious Wild West outlaw whose death is shrouded in mystery.

Stairs often replace streets on the steep slopes of this old mining town.

The first permanent memorial to a unique secret weapon of World War II.

A partial tunnel blasted into a steep ridge is all that remains of a failed railway across Arizona.

The shop's owner has spent decades in the desert wearing nothing but a strategically placed sock.

The unusual burial monument of Arizona's first governor.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

The cinder cone volcano with a less than complimentary name.

The remains of this hell for leather wild west town can still be found in the Arizona desert.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

A geological mystery on Camelback Mountain.

This reclusive Hopi village in Arizona has been continuously populated longer than anywhere else in America.

A natural history wunderkammer in the middle of the desert.

A Wild West jailhouse that slid down the mountainside.

A secret fresh water spring for animals and humans alike hidden along the most famous road in the United States.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

The wreckage of a deadly bomber plane crash can still be found near an Arizona peak.

This giant steer-skull edifice refuses to die.