What is the Thing?

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

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

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

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

An urban laboratory.

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

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

A giant mascot, a car bomb, and the mafia mingle in the history of a defunct restaurant chain.

A tribute to the statues of Easter Island along Route 66.

Arizona's first government hub is a rustic cabin now preserved as part of a historical museum.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

This memorial pyramid marker honors one of the United States Government's first official camel riders.

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

The unusual burial monument of Arizona's first governor.

The shop's owner has spent decades in the desert wearing nothing but a strategically placed sock.

A former department store turned into a quirky restaurant.

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

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

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

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

Come for the pizza, stay for a performance on the world's largest theater pipe organ.