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.

The only international border marker within the United States.

A mysterious drive-in nestled in the forest that leaves little to the imagination.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

Tracks near this Texas nature site were once thought to support the Creationist belief that man and dino coexisted.

This soda factory is one of the last in America to use real cane sugar despite the protestations of Dr Pepper.

This tiny, hurricane-resistant house in Galveston is one of the city's most notable architectural oddities.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.

An emerald-green grotto just a short trip from Austin.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

After a 2004 tsunami, this stranded boat was left in place.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

A town wears its heart on the sleeve of a smiling girl, arms flung wide open in a cheerful greeting for all who encounter her.

This professional clown's home is an outsider art wonderland.

The only Frank Lloyd Wright-designed structure in the architect's hometown.

The only National Monument ever to go missing for nearly 50 years then resurface in a dump.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

Every half hour the eye-rolling clock face sticks out its tongue to mock the good citizens of Koblenz.

The medieval "dragon" on an Austrian city's coat-of-arms comes to life in a fountain.

The monumental home of Prussia’s eccentric "Cannon King."

A magical, if a bit tacky, 1960s castle conjures up medieval fairytales and Greek mythology.