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

A once popular resort—said to be the vacation spot of gangster Al Capone—now remains abandoned in the woods of Arizona.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

America's only nuclear missile silo open to the public.

Some of Arizona's best spit-roasted tacos al pastor can be found at a weekend swap meet.

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

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 geological mystery on Camelback Mountain.

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

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

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

A natural history wunderkammer in the middle of the desert.

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 collection of Wild West movie memorabilia also claims to hold some secrets of the Lost Dutchman's mine.

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

An artificial crater field that trained astronauts for lunar exploration.

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

An amazing collection of curiosities hidden in a small Welsh village.

A magnificent menagerie of oddities, including taxidermy cryptids.