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!

I often go exploring into random and dilapidated areas of Berlin. I like the thrill of finding new nooks and crannies with strange visual sites. A few months ago, an old housing colony was abandoned, and many objects (such as couches and front doors) were left at the edge of the city to rot or to be scavenged. This is a view from a non-descript area of the S-bahn train tracks (between Sonnennallee station and Treptower Park station) into the most Southern part of Neukölln district.

Great place for Bulgogi and the original place of a small street food success story in Berlin. 

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.

This cinema is nothing special if you're looking for that comercial combo big screens + major sound system, but it has its own sidewalk charm and decadent glam. Also it makes a good option for a date. You have plenty to choose for dinner and drinks all around Kottbusser Tor.