The cutest way to stay safe in traffic.

A whimsical bridge adorned with decorative dragons.

A miniature train-ride through Slovenia's largest cave system.

This massive subterranean fissure is known as the "underground Grand Canyon."

This one-time health resort was used by aristocrats around the world.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

A unique work of automotive art calls this shopping center home.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Atop this former dutch railway office sits an interstellar work of art.

A dramatic art installation features a BMW flying out of a building in Rotterdam.

A modern reimagining of a medieval city gate.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Once a black market electronics marketplace, now an otaku shopper's paradise.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

A statue representing a lost Roman profession that was vandalized for centuries.

A massive marble foot is tucked away in a small alley near the Pantheon.

This ancient market is often referred to as the oldest shopping mall in the world.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

After protestors toppled a statue of a 17th-century slave trader, the pedestal where it once stood remains unoccupied.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.