Make a wish at what might be America's only Catholic shrine to a sinner.

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

A rare wayfinding portmanteau of “Street” and “Avenue.”

Legend says train robbers stashed their gold within the depths of this unusual cave.

This Old West prison built into the side of a cliff was said to be inescapable.

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

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

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

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

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

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

A Wild West jailhouse that slid down the mountainside.

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

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

A mysterious spirit totem at the edge of Navajo lands.

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

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

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

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

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

This Route 66 classic sports a giant fiberglass rabbit that you can ride.

Collection of vintage trailers double as hotel rooms.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.