Inside this unique festival hall, a slide leads guests down to a subterranean watering hole.

The zoological collection at the Hessisches Landesmuseum hosts some of the world's oldest habitat dioramas.

Flowers have mysteriously appeared on her effigy every day for the last 150 years.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

Four-story slides send people whizzing through the math department at this Munich university.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

A tiny island is connected to the mainland by a private railway that residents travel in their own personal wagons.

A museum dedicated to the silliest fruit.

In this truly magical place, rent hasn't been raised since the year 1520.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

No need to strap in for a "ride" on this walkable roller coaster.

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

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

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 slice of central Asia in the middle of Berlin.