Exterior of Kollhoff Tower and Deutsche Bahn Tower at night, Potsdamer Platz, Berlin, Germany, Europe

kollhoff tower deutsche bahn tower night potsdamer platz berlin germany german europe european photography colour colour image color color image outdoors outside background people incidental people people in the background building exterior building buildings architecture architectural modern 20th century futuristic glass lens flare flare sunburst downtown skyscraper street city cities cityscape angry sky illuminated lit lit up vertical vertical image