Along the old Route 66 is an abandoned trading post made from old telephone poles, built by a former circus clown.

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.

This giant steer-skull edifice refuses to die.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

A natural history wunderkammer in the middle of the desert.

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

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

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

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

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

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 old saloon in the West filled with history, and according to some, a few dozen ghosts.

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

This Route 66 classic sports a giant fiberglass rabbit that you can ride.

Don't blink or you'll miss it.

This golf ball–shaped former desert real estate office now houses a UFO museum.

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

Open since 1938, this diner has kept its fountain, malt machine, and all the gum that greasers left beneath its counter.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

The world's largest military aircraft cemetery.

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

A motel dedicated to Southwestern nostalgia.