These 12th-century catacombs carved into a mountainside were a place of mysticism and Christian hermitages.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

A small square plaque marks a failed assassination attempt that could have changed history.

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

Go surfing on this urban wave, "hacked" by local surfers.

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

A fearsome dragon clings to a corner of Munich's city hall.

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

Tiny memorials honor individual victims of the Holocaust.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

A fascinating insight into daily life in the Eastern Bloc.

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

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

The site where a plot to assassinate Hitler was planned—and its conspirators were executed—is now a powerful memorial to the German resistance during World War II.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

A historic fire call point.

One of the world's heaviest musical instruments towers within a popular urban park.

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

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

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