This downtown Dallas art installation is always on the lookout.

This small town Texas cemetery is said to be the burial site of a UFO pilot who crashed in the 1800s.

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

A Victorian mansion, painstakingly reproduced to appear just as the the Munster's family home did on TV.

At the "Garage Mahal" in Houston, car culture is about more than just driving.

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

A private collection of massive steel monsters guarding a Texas pipe works.

A onetime gangsters' hideaway where you can dine on steaks, fine wines, and cigars just like they once did.

A sprawling outdoor museum filled with larger-than-life works of art.

To find the "unicorns of the deep" you've got to go downstairs.

Huge abstract sculptures of the Puerto Rican Flag.

It was originally part of a "terrible lizards" collection at the 1964 New York World’s Fair.

In a grove of fast growing walnut trees outside Paris, Illinois, a marker shares the story of a fictional road building culture.

This folk art wall claims to be the world's one and only memorial to the bygone age of hippies.

This historic lavatory leftover features two levels of defecation stations completely without context.

The hometown of Popeye's creator is littered with a growing collection of granite cartoon characters.

Man-made geyser that rises to the exact height of the Gateway Arch.

The world's third-largest scale model of the planets.

This life-size bronze statue remembers the tallest recorded human in his Illinois hometown.

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

First known as the "Sample House," this construction mash-up was meant to be a living catalogue of building styles.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.

Moving, mind-blowing metal sculpture work of an outsider artist.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.