Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

The palatial McDonald's that inspired Wesley Willis.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This historic national park is covered in the stunning ruins of red rock pueblos.

Ancient pueblos built into the base of a natural canyon wall.

This sanguine boulevard was named after a deadly cowboy bar fight.

This abandoned bootleg attraction was built to cash in on the popularity of classic TV show, F Troop.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

A house turned museum is the real-life "home" of the fictional main character of The Wizard of Oz.

This Wild West attraction is probably more fiction than history, but that doesn't mean it's not awesome.

Metal sculpture folk art lining the Kansas Highway.

The Bong-area park police have asked visitors to please, stop stealing the signs.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

The self-made house sculpture of an outsider artist who named himself "Chief Rolling Thunder."

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

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

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

The first declared National Monument in the United States.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This otherworldly church spire reaches up toward the heavens.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.