Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The most visited, and possibly most controversial, museum in Germany.

Berliners converted a bombed-out, disused lot into a community-run urban farm with its own cafe and bar.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

The video game-themed street art first popped up in the French city.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

Notorious artist squat renovated into legal studios.

Abandoned railway line circling the city of Paris.

France's most famous cemetery, with some of its most curious tombs.

This statue honors the thousands of Allied avians that served and died for France during World War I.

Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.

This disused VLF radio station is no longer in service but the surrounding town still bears its name.

An amusement park on the grounds of an unused nuclear power plant, with a swing ride inside the cooling tower.

A miniature city, once ruled by the Queen of the Netherlands.

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

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

Devious political maneuvering and four ancient, working telescopes are central to the world's second-oldest observatory.

This 11th-century castle sits so low you can't see it behind the surrounding buildings.

Colorful and chaotic stacked hotel in North Holland.

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

This old KLM airplane cut into three parts was transformed into an eclectic airport gift shop.

The elegant manor house where Kaiser Wilhelm II lived in exile after World War I.

A grassy pyramid named after a French battle.