The best-preserved ancient theater in the world.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

Once described as the "Eagle's Nest," this ruined ancient city rests on a remote mountaintop.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

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

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

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

A stairway to heaven, or to nowhere at all.

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

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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A fascinating insight into daily life in the Eastern Bloc.

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

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

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

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

Museum dedicated to "the man who moved the Earth."

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

A statue honors the children who fought Nazis in Poland.

A memorial to the beloved brown bear that served in the Polish army during World War II.

A national collection of Communist-era musical posters.

A huge wooden clock that is so beautiful its creator was forcibly blinded.