The oldest olive tree in Greece has been bearing fruit for at least 2,000 years.

Cretean quarry suggests real-life site for ancient Greek myth of the man-eating Minotaur in his labyrinth.

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

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

Reminders of the Battle of Berlin still scar the railway.

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

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

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

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

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

A fascinating insight into daily life in the Eastern Bloc.

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

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

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

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

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

During World War II, the Nazis repurposed this beer cellar to store stolen artwork.

An eerie, derelict amusement park in Berlin.

The scars of World War II are preserved on its walls.

The footprint of a frustrated devil in Munich's Cathedral.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

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

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

This natural hill rose another 130 feet from the debris and rubble added after World War II.