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

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.

Take a monster truck tour around an ostrich farm in the middle of the desert.

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

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

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

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

This giant steer-skull edifice refuses to die.

A Wild West jailhouse that slid down the mountainside.

Founded by members of the Tohono O’odham Nation, this one-room joint's James Beard–winning fry bread is light as a cloud.

A natural history wunderkammer in the middle of the desert.

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.

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

An artificial crater field that trained astronauts for lunar exploration.

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

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

An urban laboratory.

What is the Thing?

Collection of vintage trailers double as hotel rooms.

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

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

A motel dedicated to Southwestern nostalgia.