Boxhagener Platz
Friedrichshain. Flea market with lots of kitschy goods former GDR residents are still chucking out. Every Sunday 10:00-18:00.
Turkish Market
Maybachufer, Kreuzberg, Tue and Fri afternoons. Groceries, cloth and cheap wares.
Winterfeldplatz
Schöneberg, Wed and Sat mornings from 7:00 until 13:00. Fruit and veg and lots of arty goods.