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

This collection of neon icons is preserving Arizona's history, one sign at a time.

The cinder cone volcano with a less than complimentary name.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

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 geological mystery on Camelback Mountain.

This giant steer-skull edifice refuses to die.

These free-roaming horses were once destined to disappear from the land.

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

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

A mysterious "wedding cake" castle in the middle of the urban desert.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

This southwestern historic site was designed and built by an artist who wanted his work to "feel at home."

An Arizona museum with a collection of pharmaceutical oddities, including a jar of a gangster's chewed gum.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

An artificial crater field that trained astronauts for lunar exploration.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

Don't blink or you'll miss it.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.