Millions of years of erosion created the feature for which this rock formation is aptly named.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

Originally conceived as part of a proposed Arizona State Capitol building in the 1950s, this structure built in 2004 stands as a monument to the architect's legacy.

The rocks exposed at Valley of Fire State Park also occur in a much less known but equally spectacular area a few miles to the southwest.

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

This collection of Wild West movie memorabilia also claims to hold some secrets of the Lost Dutchman's mine.

The remains of a large pueblo village constructed by the Salado culture, who occupied the region more than 600 years ago.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

The location where the iconic movie character declared it was time to go home.

This balancing rock is one of Utah's most unusual geological formations.

A lingering bit of Space Race nostalgia lies in the middle of the desert.

A monument commemorating how a frontier town got its unusual name.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This oversized flute-playing Ancestral Puebloan deity is also a landmark of Southwestern kitsch.

This striking church was built from a Frank Lloyd Wright design more than a decade after the master architect's death.

A motel dedicated to Southwestern nostalgia.

A kaleidoscope gallery and steampunk emporium named for a pioneering journalist.

Florence's historic adobe county courthouse was turned into a historic site that honors one of Arizona's most prominent political leaders.

Collection of vintage trailers double as hotel rooms.

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

Chicago’s incendiary role in the labor movement.

With 8,000 pipes this giant instrument is the most versatile theatre pipe organ ever built.

The sign to a demolished amusement park now stands in front of a local library.