Less famous then other parks like Volkspark Friedrichshain, this park is a very interesting park in Wedding built between 1926-1929. It's a landscape park with a forest feeling, more then a park one, although some areas are normal park fields to relax and enjoy the green season.
At one end of the park there's Plötzensee lake, on the other one two small lakes. Inside the park there is a protected area for animals and an open air cinema, as well a typical gernan kolonie garten.
More infos: WIKI (german)