There's nothing more revigorating during the dark winter days than spending a couple of hours in a sauna. Germans have mastered the art of sauna and you can find amazing pieces of architecture in the public swimming pools (Stadtbad). I find Stadtbad Neukölln very peculiar in its neoclassic architecture and it's definitely a wallet-friendly option to enjoy some sauna time there. Be prepared to be naked in front of man and woman!
Cemetery of the Dreifaltigkeitsgemeinde (Dreifaltigkeitsfriedhof) in Kreuzburg on Mehringdamm 22, between Zossener Strasse and Blücherstrasse. The grandson of German-Jewish philosopher Moses Mendelssohn, is musician Jakob Ludwig Felix Mendelssohn who was born in Hamburg and lived in Berlin from age two. Felix Mendelssohn and his family are buried in the middle of Kreuzburg at the Cemetery of the Dreifaltigkeitsgemeinde. Today it is administered together with its 5 neighbouring Protestant cemeteries by the cemetery administration St. Jacobi number I.