Metal horses galloping through a London fountain provide a link to the city's past.

What is it about mushrooms that makes people wish they lived inside of them?

Before becoming a poet John Keats studied here to become a surgeon.

Every New Year's Day, locals don gaudy costumes and dive into the frigid Firth of Forth.

Beautiful scenery, history, science, and physics come together in this remnant of shipping lore.

Strange physical sensations and optical contradictions keep visitors coming back for more.

During WWII the U.S. Navy conducted primitive drone strikes on this Lake Michigan lighthouse.

Winter weather reveals a large Italian marble crucifix drowned beneath Lake Michigan.

Unique Michigan homes look like something out of Tolkien's "The Lord of the Rings."

Once the primary source of ice in this region during the mid-20th century.

This cannonball embedded in the side of an Edinburgh house once served a surprisingly pedestrian purpose.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

Designed to illustrate two parts of the human psyche.

The ruins of a 15th-century castle that has seen its fair share of bitter feuds.

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

The final resting place of New Orleans' most famous voodoo priestess.

This remnant of an ancient Persian city is considered to be the world's largest single-span brick vault arch.

Each year, teams of the world's best snow sculptors have 65 hours to create frozen masterpieces.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

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

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

This small, nautical gift shop is home to a 500-pound behemoth.