A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

These 18th century gardens tell a rocky story of the son of Odysseus.

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

Terrifying derelict military hospital once housed a recuperating Hitler.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

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

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

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

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

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

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

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

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

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

An intricate and amazing house built by architect Karl Junker.

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

The patron saint of spinsters grasps a container of dried blood.

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

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

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

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

An abandoned NSA listening post on Berlin's "Devil's Mountain."