The steepest classic funicular in the world glides along a dizzying incline.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This 600-year-old home seems to defy physics.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

Centuries of warfare, tragedy, executions, and poetry come together in this 13th-century fortress.

Every half hour the eye-rolling clock face sticks out its tongue to mock the good citizens of Koblenz.

The sweet story of how American cargo planes became known as "Candy Bombers" during the Berlin Blockade.

A historic casino where Dostoyevsky is said to have lost it all on a single spin of the roulette wheel.

Along the banks of the River Rhine lies a park that seems unassuming, but beneath the surface lies a long and fascinating history.

Tiny castle in the middle of the Rhine made you pay to pass.

This natural history museum houses one of the world's largest rat kings, a terrifying jumble of tangled rodents.

A small house sits between two huge rocks, with its back to the sea.

This former mining hub holds a surprising abundance of undisturbed relics from the Old West.

This reconstructed Norman castle is the world's most accurate, from location to livestock.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

A 30-acre garden inspired by the principles of modern physics.