This museum glorifies the humble potato.

This now-abandoned part of the original transcontinental railroad route provides a surreal driving and historical experience.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

The last SR-71 ever constructed.

A surviving concrete arrow from a 1920s navigational network is preserved right off a modern freeway.

This beloved roadside attraction welcomes visitors with his signature neon smile.

Come for the speed, leave in love with the desert.

A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

A remote crossroads honoring a fallen talent.

A house built from trash known as the poor man's Hearst Castle.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

This painted blacktop brings the classic arcade game to life.

The Denny Substation has been called "the coolest substation in the world" and sits in a densely populated Seattle neighborhood.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

Deep into the lower floors of Pike Place, find a date with fowl fate.

A wall of chewing gum moonlights as collective art.

This working class sculpture pounds his hammer all the livelong day.

World-famous, Pink's still manages to keep its prized cult fetish status.

340 bicycles, 65 feet high.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

Ancient snack bar of the Roman Empire re-opened.

The walls and streets of the ancient city are peppered with penises.