rebeka: Very nice, sophisticated bar / restaurant. You can have excellent wines and the food definitely worth trying. Not the cheapest place, but worth going and the area is the nicest in Berlin :)
DHR.com: This museum opposite the Charlottenburg Palace is home to historical works of modern art classics, which include those by Picasso, Giacometti, and Matisse. Opens at 10am, closed on Mondays.
Matas: It's quite straightforward - you order a lamb shashlik menu for two, enough red wine and eat continuously for the next two hours. Then lean back and dream of the Caucasian mountains