When Andreas Rink opened his cozy wine bar not far from Oranienplatz, he named it after his Berlin-born grandfather. The constantly changing wine selection is written in chalk on a blackboard that hangs on the wall. You can sample wine by the glass or purchase a wide range of bottled vintages. Most of the white wines come from the Mosel region, but the reds include Italian and French varieties as well. The wines are paired with savory snacks, like quiche, soup, and cheese.