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

An eclectic assortment of medieval architecture in a small Iowa town.

The huge collection of paintings of the American West is one of Denver's best-kept secrets.

The vertical-axis windmills of ancient Persia have been grinding flour for 1,000 years and counting.

A real-life replica of a home from Hayao Miyazaki's beloved movie "My Neighbor Totoro."

The sacred shrine of the Yazidis.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

The Virginia home of one of the signers of the Declaration of Independence is being preserved with a unique glass facade.

This remarkably well-preserved Incan city managed to survive the conquistadores.

The only diamond mine in the world where you can keep what you find.

A bust of the first president welcomes visitors to the only town in America called George, Washington.

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

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

Hidden dwellings in the cliffsides of North Togo used by local Moba tribes to evade 18th-century slave traders.

Home to a full cast of the largest woolly mammoth ever recovered in North America. 

The U.S. government built the million-pound stack of steel during the Space Race.

This historic-shipwreck-cum-diving-spot can still be seen poking its boiler out of the Lake Michigan waters that claimed it.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

A hollow cement depiction of time's inexorable effect on the human body.

The remains of the concrete ship can be seen during low tide.

This rare basalt crater lake is used to study the Moon and Mars.

You thought Santa Claus didn't exist, but it turns out you were wrong.

Part of a worldwide art project, this mysterious semicircle of concrete shapes holds the pieces of a larger story.

In the loving memory of a tragically deceased role-player this Illinois park is decked out with both dungeons and dragons.