Office buildings under construction, Potsdamer Platz, Berlin, Germany

City skyline lit up at night, Mercedes Building, Sony Center, Potsdamer Platz, Berlin, Germany

Cupola of building, Sony Center, Potsdamer Platz, Berlin, Germany

Buildings lit up at night, Mercedes Building, Sony Center, Deutsche Bahn, Potsdamer Platz, Berlin, Germany

"Christmas market, central forum of the Sony Center, Potsdamer Platz square, Berlin, Germany, Europe"

"Christmas market, central forum of the Sony Center, Potsdamer Platz square, Berlin, Germany, Europe"

Buildings along road lit up at dusk, Deutsches Historisches Museum, Berlin, Germany

"Brandenburg Gate and a Christmas tree, Advent season, Pariser Platz square, Berlin, Germany, Europe"

"Berlin Cathedral at night, Berlin, Germany, Europe"

Tourists sitting at sidewalk cafe, Berlin, Germany

"Gropiussstadt, Gropius City, satellite settlement, large housing estate with 18, 000 apartments, Neukoelln, Berlin, Germany, Europe"

Facade of parliament building, Reichstag, Berlin, Germany

Buildings in city, Friedrichstrabe, Berlin, Germany

Office buildings lit up at night, Potsdamer Platz, Berlin, Germany

Low angle view of skyscrapers in city, Potsdamer Platz, Berlin, Germany

Low angle view of skyscrapers in city, Potsdamer Platz, Berlin, Germany

Buildings lit up at dusk, BahnTower, Kollhoff Tower, Potsdamer Platz, Berlin, Germany

People at sony center, Potsdamer Platz, Berlin, Germany

Sony center illuminated at night, Potsdamer Platz, Berlin, Germany

Mural on wall, Berlin Wall, Potsdamer Platz, Berlin, Germany

Buildings in city, Kaiser William Memorial Church, Tauentzienstrasse, Berlin, Germany

Low angle view of building interior, Potsdamer Platz, Berlin, Germany

Silhouette of person walking in tunnel, Potsdamer Platz, Berlin, Germany

Buildings in city, Jenoptik, Carl-Zeiss-Platz, Jena, Thuringia, Germany

Buildings in city, Potsdamer Platz, Berlin, Germany