An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

The oldest inn in England served brew to the crusaders.

Used as an example in one of the first dictionary entries for "museum" in 1706.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Cadillac where country's first big star was found dead.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Some North Carolina Cherokee have been keeping their history alive for decades with a single play.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

The ancient latrines of the Greeks, in all their public glory.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

The prototype for all Nazi concentration camps.

Daily jousts and dancing barrel makers in Munich's mechanical clock.