Visiting Reichstag in Berlin
Reichstag building visit is must to do if you are in Berlin for first time. It is free of charge to visit and only requires registration in advance.
10 free things to do in Berlin
10 free things to do in Berlin: Reichstag, Brandenburg Gate, Tiergarten, Potsdamer Platz, Museum Island, Holocaust memorial, Kaiser Wilhelm Memorial Church, Hackescher Markt.