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

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

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

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

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

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

An artificial crater field that trained astronauts for lunar exploration.

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

An urban laboratory.

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

Collection of vintage trailers double as hotel rooms.

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

The world's largest military aircraft cemetery.

This golf ball–shaped former desert real estate office now houses a UFO museum.

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.

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

Limestone caves with spectacular showcase chambers.

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

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

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

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

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

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.