Some 10,000 works of ancient rock art cover these volcanic basalt outcrops near the Gila River.

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

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

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

In the middle of a desert subdivision, there is supposedly an impact crater site from Kcymaerxthaereal times.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

The wreckage of a deadly bomber plane crash can still be found near an Arizona peak.

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.

This bird-shaped rock formation defies gravity, time, and classification.

An artificial crater field that trained astronauts for lunar exploration.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

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

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

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

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

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

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

Inside this store, a mysterious statue draws visitors from the world over.

A Wild West jailhouse that slid down the mountainside.

The remains of this hell for leather wild west town can still be found in the Arizona desert.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

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

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