Bahnhof Berlin Friedrichstraße
Berlin Friedrichstraße is a railway station in the German capital Berlin. It is located on the Friedrichstraße, a major north-south street in the Mitte district of Berlin, adjacent to the point where the street crosses the Spree river. Underneath the station is the subway station Friedrichstraße.
Due to its central location in Berlin and its proximity to attractions such as the Unter den Linden boulevard, the Brandenburg Gate and the Reichstag, the station is a favorite destination for tourists. At the same time, it is the main junction for regional traffic in Berlin, measured by the number of passengers.
During the Cold War, Friedrichstraße became famous for being a station that was located entirely in East Berlin, yet continued to be served by S-Bahn, U-Bahn trains from West Berlin as well as long distance trains from countries west of the Iron Curtain. The station also was a major border crossing between East and West Berlin. (Wikipedia)