This nondescript tunnel has been featured in a number of iconic movies, from “Roger Rabbit” to “Back to the Future.”

The stone circle honors the 19 firemen who perished during the Yarnell Hill Fire.

This tucked-away cemetery is the final resting place of a prospector who uncovered one of the largest gold mines in Arizona.

The site of a popular piano lounge owned by a former world champion boxer is now a place to rent a truck.

A colorful, century-old cemetery of the Yaqui Indian Tribe hidden amid the suburban sprawl of Tempe, Arizona.

A former department store turned into a quirky restaurant.

A giant mascot, a car bomb, and the mafia mingle in the history of a defunct restaurant chain.

A strenuous, unofficial trail leads to spectacular views in one of America's most remote national monuments.

This oasis-like spring in the Sonoran Desert is home to unique, endangered species.

Colorful sand dunes create a unique attraction in this part of Utah's red-rock country.

A frozen oasis lies beneath the scorching New Mexico desert.

This former New Jersey bus now exists as a public art exhibit.

Equipment used to mine silver and lead has been preserved in this almost-ghost town in northern Nye County.

The ruins of a military outpost from the 1860s form the centerpiece of a Nevada state park.

The only thing still moving in this town is the eponymous hot spring.

This former mining railroad is one of the best-preserved short lines in North America.

The self-proclaimed gateway to the Extraterrestrial Highway.

This sign designates the road that leads to the infamous Area 51.

An ill-fated attempt to grow wheat in the sagebrush steppe of northeastern Nevada.

The first Protestant church in Arizona and only Gothic Revival style adobe church in the world.

A mistaken marker makes an erroneous claim along the historic Old Divide Road.

Collection of vintage trailers double as hotel rooms.

The former home of the army detachment that captured Geronimo.

The state bird of New Mexico, constructed entirely out of garbage.