The mouldering manses of wealthy colonials still pock the streets of a Curaçao neighborhood.

An enormous Polaroid picture adds an artistic flair to Rotterdam.

Four giant movable street lights decorate this modern Rotterdam square.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

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

A modern reimagining of a medieval city gate.

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

Built by crowdsourcing, this wooden foot bridge saved a part of Rotterdam that was languishing in wait of city funding.

A statue of the second-tallest Dutchman in history.

It houses the remains of a 17th-century version of the Titanic.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

The NASA scientists behind Apollo 11 started out developing Nazi weapons at this abandoned German rocket factory.

The first (but not only) upside-down house in Germany.

An elevator into the Baltic Sea.

A section of destroyed vertical lift bridge stands alone in the Peene river.

A tilted half-timbered house from 1672 is built into a salvaged segment of a medieval wall.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

A stunning gilt bronze relief denounced by Hitler as "degenerate art"—even though it was dedicated to the Nazi leader.

A spitting ode to a German serial killer.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

A stunning two-story timepiece within a medieval Brick Gothic church.