After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

Stairs often replace streets on the steep slopes of this old mining town.

A former department store turned into a quirky restaurant.

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

The unusual burial monument of Arizona's first governor.

The biggest solar telescope in the world helps reveal the secrets of our sun.

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

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

A geological mystery on Camelback Mountain.

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

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

This giant steer-skull edifice refuses to die.

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

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

An urban laboratory.

Collection of vintage trailers double as hotel rooms.

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

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

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

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

Limestone caves with spectacular showcase chambers.

A spiritual vortex among the red rocks in Sedona.

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

An homage to everyone's favorite prehistoric cartoon family.