This German bone house contains the remains of some 20,000 souls.

A unique Holocaust memorial tells the personal stories of the Jewish residents exiled from greater Berlin.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

An elevator into the Baltic Sea.

Super-heavy Nazi architectural experiment.

The prototype for all Nazi concentration camps.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

These blingy, baubled skeletons lie in glass boxes inside a baroque Bavarian church.

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

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

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

Terrifying derelict military hospital once housed a recuperating Hitler.

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

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

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

An intricate and amazing house built by architect Karl Junker.

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

A wunderkammer of mysterious objects and stories.

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

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

Art and a pun, all in one.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

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

Started as a kitchen garden, now the second largest botanical garden in the world.