Repurposed space and ultra-modern construction collide to create this geometric wooden spectacle.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

The last fully functional fortress of Germany's World War II Atlantikwall.

This Swedish automobile graveyard is a beautiful gallery of decay, but woe be to any who would steal a souvenir.

A decommissioned submarine base makes a great space for graffiti art.

Fortifications built for a Soviet invasion that never came now sit abandoned in a losing battle against nature.

A vast and unlikely aviation museum kept alive for over 50 years due to one man's tenacity.

This statue is dedicated to the animal cosmonauts that perished during space flight experiments.

Hans Christian Andersen for the postmodern world.

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

An eerie, derelict amusement park in Berlin.

An old tram depot transformed into a vintage car paradise.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

The site where a plot to assassinate Hitler was planned—and its conspirators were executed—is now a powerful memorial to the German resistance during World War II.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

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

This 1920s Amsterdam neighborhood was built as a giant experiment in concrete construction.

This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.