This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

Berlin's old airport.

Floating swimming pool within a moored vessel.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This historic stone bridge has an entire neighborhood clinging to its sides.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

Living trees form the structure of an open-air palace.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

A stairway to heaven, or to nowhere at all.

"The most colorful grottoes of the world.

This "floating railway" is one of the world's oldest monorail systems.

An intricate and amazing house built by architect Karl Junker.

When the rain falls, this drain system turns into a musical instrument.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

Where once there was a train station bathroom, there is now this German burger joint.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A striking 12th-century-style castle built on the edge of a cliff.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

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

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

A wunderkammer of mysterious objects and stories.