The biggest solar telescope in the world helps reveal the secrets of our sun.

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

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

The cinder cone volcano with a less than complimentary name.

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

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

A geological mystery on Camelback Mountain.

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

A Wild West jailhouse that slid down the mountainside.

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

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

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

This giant steer-skull edifice refuses to die.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

This sanguine boulevard was named after a deadly cowboy bar fight.

This rustic cabin, outfitted with gun slits, was once home to John D. Tewksbury, patriarch of the bloodiest family feud in American history.

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.

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

A Tucson museum and performance space full of found-object movable sculptures.

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

In Tucson a giant metal snake helps pedestrians cross a busy highway.

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

An artificial crater field that trained astronauts for lunar exploration.