Oddly shaped rock formation, misassociated with a nearby utopian community.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Legends surround this jagged rock formation in the New Mexico desert.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

These half-buried combine harvesters just off Route 66 are an homage to the Cadillac Ranch.

A small car graveyard sits in the shadow of the famous Cadillac Ranch.

The folks at the Devil's Rope Museum want you to get hooked on barbed wire history.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.

An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

This historic bridge has weathered fires and floods and still stands, now abandoned, where it has stood since 1874.

A beautiful South Korean gate and garden in Little Rock honors American Taekwondo.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

A restored, one-room African-American schoolhouse in the diva's hometown now preserves the legacy of its most famous student.

This replica of the Greek structure is in the heart of Nashville.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

The highest point in Delaware is located under a trailer so this marker across the street will have to do.

Have a seat with the father of modern computing at this Manchester monument.

Hidden on the urban banks of a Manchester river are a series of abandoned waterside industrial sites.

A tiny, hidden alleyway dedicated to the father of meteorology.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.