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

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

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

At an isolated roadside rest area stands a monument marking where famous Western star Tom Mix died in 1940.

Commercial aircraft storage facility, where you can see a TWA 747.

This small hill features the most notable collection of petroglyphs in Saguaro National Park.

The remains of this rugged homestead ranch offer a brief glimpse into a bygone era.

This quiet chapel was central to a community of settlers who reclaimed an abandoned fort.

A colony of Mexican free-tailed bats live under the bridge and take flight at sundown all summer long.

Enormous photography collection housed in a study center co-founded by Ansel Adams.

This scrap yard doubles as a naive art gallery full of found art and farm animals.

Hikers and walkers flock to this historic volcanic butte for its scenic desert views.

Despite a recent paint job, the factory still sits empty.

Browse an impressive collection of passenger and military aircraft dating back to World War II.

This road earned its macabre nickname after hundreds of Iraqi troops died along it in 1991.

Kuwait City's uniquely designed water towers look straight out of a retro sci-fi cityscape.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

The remote resting place of a notorious Wild West outlaw whose death is shrouded in mystery.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

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