This collection of vintage signs reflects the long and colorful history of this Arizona town.

Stock up on all your horror paraphernalia at this year-round Halloween emporium.

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

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

This unique competition celebrates an American Indian and Canadian First Nation cultural tradition.

This historic pink parlor keeps Phoenicians cool with homemade, retro ice creams.

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

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

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

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

An homage to everyone's favorite prehistoric cartoon family.

This historic national park is covered in the stunning ruins of red rock pueblos.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

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

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

A stealthy Apache hideaway that became the haunting site of a mass grave.

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

A small canyon with petroglyphs and a seasonal waterfall, only a short hike from the remnants of old Route 66.

Ancient pueblos built into the base of a natural canyon wall.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

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

The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

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