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

A geological mystery on Camelback Mountain.

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

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

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

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

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

These free-roaming horses were once destined to disappear from the land.

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

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

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

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

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

An artificial crater field that trained astronauts for lunar exploration.

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

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

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

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

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

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

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

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

An homage to everyone's favorite prehistoric cartoon family.

Eons ago, a rushing lava river formed this pristine passage through solid rock.