I left the city last Saturday. Usually I am afraid of leaving Berlin – there are so many weird people out there.
But it was totally woth it! Potsday is so rewarding. It was the summer residence of the Prussian Royals. Hence you have all the quaint parks, romantic castles and crazy royal stuff here. Just look at this, this for example was a fridge:
Get an ABC dayticket for 7.8€. You can use all busses and trams in Potsdam with that one as well. Regional Express trains leave from Alexanderplatz.
go there – have fun