The largest and most well-preserved petroglyph site in the Verde Valley.

The last of a gourmet supermarket chain, this store helped spark California's Food Revolution.

This 15-story mural celebrates the 50th anniversary of the musician's iconic "At Folsom Prison" album.

Is this the most Portland place ever?

Hidden beneath a lake for decades, this brutalist mine has now emerged from beneath the receding waters.

I Street Bridge is the heaviest swinging center bridge in the United States.

Art Deco stylings conceal the true nature of this bridge.

This vintage animatronics show is the Vegas version of a walk through the woods.

Hidden in the Santa Ynez Mountains off Highway 154, this tiny restaurant once served as a stagecoach stop.

This little gem of Spanish Colonial architecture has been abandoned since the 1950s.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

One of the last remnants of the city's Chinese nightclub scene is now a dive bar selling killer mai tais.

Dentist's hated concrete colossi are now beloved icons of the community.

This 19th century hydroelectric powerhouse was the first of its kind.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

Fans of vintage Vegas, kitsch, and toy pony-based gambling now flock to a casino called The D.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

A whimsical, punny collection of "fence art" outside the tiny mountain town of Baker, Nevada.

This ancient village provides insight into the complexity of the pre-Columbian Fremont Culture.

The longest living non-clonal organisms on Earth.

These huge stone ovens in the desert fueled the Nevada silver boom, and may have also been a hideout for outlaws.