One of downtown Berlin's last reminders of its Communist past.

The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

A preserved Nazi labor camp now has a Holocaust museum on site and memorials to the thousands that died while imprisoned at the camp.

This small exhibition displays equipment and artifacts once belonging to the feared Stasi secret police.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

A former Nazi lookout tower with a magnificent view of the Rhineland.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

One of the most well-known city festivals in the world.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

The NASA scientists behind Apollo 11 started out developing Nazi weapons at this abandoned German rocket factory.

Eight naturally mummified bodies in glass coffins are housed in an underground crypt.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

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

A stunning two-story timepiece within a medieval Brick Gothic church.

Legendary site where an evil bishop was devoured by rodents.

A preserved college lock-up that recalls a clubhouse approach to discipline.

Carved fountains poignantly placed in parks and in front of special monuments.

A wunderkammer of exoticism immortalized by Tom Waits.

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

The prison where Hitler wrote "Mein Kampf," and 278 Nazis were later executed for war crimes.