Berlin Hauptbahnhof, Central Station

Almost all the day trips from Berlin leave from Hauptbahnhof: the ICE to Leipzig, in a little over an hour and a quarter; trains to Dresden, in less than two hours; the RE1 regional to Potsdam, in about 25 minutes; and the RE5 to Oranienburg, for Sachsenhausen. The FEX to the airport takes 23 minutes. Go down for the U5 metro line towards the Brandenburg Gate and Alexanderplatz.