At the top of a local ski mountain is a hidden cemetery containing the graves of just two soldiers.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The yawning maw of this pagan visage is said to bite off the hands of liars.

The middle finger of modernity.

Step inside an ancient beehive tomb built for a mysterious cult hero.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

This shallow cave got its name from copious amount of human bones found inside.

The ruins of a monastery where Saint Bridget of Sweden had her revelations recorded.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Once the tallest building in Detroit, this Gothic church houses some of the oldest stained-glass windows in the country.

No one knows how many bodies are in this vault in a Chicago public park.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Hot Doug's "Hot Dog" Stand.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Trade in that pesky human soul for cold-hard circuits.

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

London's smallest police station is barely the size of a phone booth.

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