A slice of central Asia in the middle of Berlin.

Fall down the rabbit hole into a surreal journey of human consciousness "from ass to soul."

A surreal museum of extraordinary industrial objects.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

An eerie, derelict amusement park in Berlin.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

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

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

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

This conical hill was built as a testing ground for an engineer known as the Glider King.

Antique frame collection with 2,400 frames.

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

The prototype for all Nazi concentration camps.

The name doubles as an appropriate adjective for this small ossuary.

This lurid German fountain plots the sad course of marriage from dating to death.

Remnants of a cone-shaped Nazi bomb shelter.

An old slaughterhouse now holds the largest collection of pig artifacts.

The narrowest street in the world is in danger of closing up entirely.

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

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

The amazing wonder cabinets of a very rich Austrian archbishop.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

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

King Ludwig I's collection of beautiful women.