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!

Secret place that is almost always empty.

I never knew this neighbourhood existed and went to visit a friend and was instantly transported out of Berlin into some sort of 50's utopia. "The Hansaviertel is a prime example of modern architecture and urban planning in the fifties in Berlin. 36 individual buildings or ensembles still form the model of modern architecture and urban planning of the 1950s. The southern part of the war-damaged Hansaviertel, which lies between the S-Bahn line and Tiergarten, was chosen as the central demonstration area of ​​the International Building Exhibition in order to present the "city of tomorrow" - in deliberate contrast to the East Berlin Stalinallee and the restored tenement barracks." - berlin.de Also visit The Akademie der Künste, if not for the art then the architecture alone.

The Cô Cô bánh mì deli serves great vietnamese sandwiches and the best lemon grass tea I've ever had.

Best cheesecake in Berlin. Nothing else to add.