19 February Arrival; Gedächtniskirche, Kurfürstendamm area, Brandenburger Tor and Reichstag, Central Station, Alexanderplatz by night | 20 February Traveling by S- and U-bahn, Schloß Charlottenburg, Wall monument by night | 21 February Around the Museuminsel, Nikolaiviertel, Checkpoint Charlie |