Germany, Berlin, Mitte, elevated red pipes removing water from subterranean construction of new underground U-Bahn line under the Spree River.

Germany, Berlin, Mitte, sightseeing tourists emerging from the U-Bahn and S-Bahn station on Unter den Linden and walking towards Brandenburg Gate or Bransenburger Tor.

Germany, Berlin, Mitte, sightseeing tourists emerging from the U-Bahn and S-Bahn station on Unter den Linden and walking towards Brandenburg Gate or Bransenburger Tor.

Germany, Berlin, Mitte, sightseeing tourists emerging from the U-Bahn and S-Bahn station on Unter den Linden and walking towards Brandenburg Gate or Bransenburger Tor.

Germany, Berlin, Mitte, sightseeing tourists emerging from the U-Bahn and S-Bahn station on Unter den Linden and walking towards Brandenburg Gate or Bransenburger Tor.

Germany, Berlin, Mitte, sightseeing tourists emerging from the U-Bahn and S-Bahn station on Unter den Linden and walking towards Brandenburg Gate or Bransenburger Tor.

Germany, Berlin, Mitte, Potsdamer Platz U-Bahn station sign.

Germany, Berlin, Mitte, Bundestag U-Bahn underground station entrance.

Germany, Berlin, Mitte, Paul Loebe Haus by architect Stephan Braunfels housing the offices of the parliamentary committees of the Bundestag with an entrance to the U-Bahn underground railway station.

Germany, Berlin, Mitte, The Reichstag building in Tiergarten with an entrance for the Bundestag U-Bahn underground station.

Germany, Berlin, Mitte, blue U-Bahn undergound sign at Brandenburger Tor, Brandenburg Gate.