Strange red rock formations that have been attributed to a higher power for hundreds of years.

A chessmaster's dream destination.

This is not your typical jungle gym.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

Less a museum than a bizarre fantasy world created by artists and engineers.

The collection of 80+ pieces created between the years 1100 and 1500 is intended to be seen, heard, smelled, touched, and tasted.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

A Circus legend leaves an unexpected endowment.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

The headquarters of a secretive order is also a beautifully-designed park.

An extensive collection of ancient Egyptian artifacts and mummies.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This striking art museum holds an amazing series of curiosity cabinets.

Wisconsin's most celebrated export gets the royal treatment on I-94.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

A fitting attraction for the corn capital of the world.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This little valley along Highway 1 is engulfed by thousands of lilies during the spring season.

This abandoned boat was left in place thanks to its rotting beauty.