Rotterdammers' dirty minds gave this santa a dirty nickname and cursed it to a life of wandering.

The glowing blue Nymphaeum of Emperor Tiberius.

This clifftop arch is a natural stunner.

This natural crater along the coast of Jersey may take its name from the devil statues who have watched over it.

Amsterdam's former hotspot for public executions and dissections.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

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

A public urinal so pretty, it was declared a national monument.

This unattributed sculpture in Amsterdam is hiding in plain sight.

The first, and perhaps only, monument dedicated to Wikipedia.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

A self-built mosaic house and sculpture park.

A ruined castle stands atop a hill surrounded by dragon lore.

Thousands of flowers create enchanting pink tunnels over the city streets.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

Carved fountains poignantly placed in parks and in front of special monuments.

This natural hill rose another 130 feet from the debris and rubble added after World War II.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

A preserved college lock-up that recalls a clubhouse approach to discipline.

It's good luck to be mocked by this monkey.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

A Nesting Doll of Churches.