The non-native bovine herd was brought in to help conserve these Berlin wetlands.

A 12th-century fortress containing some of Berlin's oldest buildings.

Metro station with a claim to rock n' roll fame.

This conical hill was built as a testing ground for an engineer known as the Glider King.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

When German-Iraqi relations broke down, this embassy was vacated post haste.

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

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

Berlin's old airport.

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

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

An eerie, derelict amusement park in Berlin.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

Berliners converted a bombed-out, disused lot into a community-run urban farm with its own cafe and bar.

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