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

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This comprehensive collection features Native American artifacts dating back centuries.

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

An urban laboratory.

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

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

These petroglyphs created by ancient Arizonians have withstood centuries of exposure to the elements.

Once a year, at exactly 11:11 a.m., this monument comes to life.

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

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

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

An out of this world experience.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

A geological mystery on Camelback Mountain.

A self-built castle made by a mysterious man.

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

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

The unusual burial monument of Arizona's first governor.

The historic “pink house on the hill” is an architectural gem that now serves as a center for water conservation.

A colorful, century-old cemetery of the Yaqui Indian Tribe hidden amid the suburban sprawl of Tempe, Arizona.