A health museum containing a 27’’½-foot intestine.

The peaceful space is adorned by paintings by the famed abstract artist Mark Rothko.

At the "Garage Mahal" in Houston, car culture is about more than just driving.

A Wild West jailhouse that slid down the mountainside.

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

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

One of the largest open-pit copper mining operations in the entire country.

The world's largest military aircraft cemetery.

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

America's only nuclear missile silo open to the public.

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

One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

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

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

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

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

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

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

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

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