Named for the acclaimed chef Stefan Hartmann, Hartmanns Restaurant is in the heart of Kreuzberg, on a residential street that manages to be both elegant and jarringly historical (a 19th-century gasometer used as a bunker in WWII sits directly opposite). The restaurant's sublevel interior, however, is all warm lighting and white-painted walls. The changing menu uses market-fresh ingredients to revive classic German dishes, though there are also some Mediterranean influences here and there. You can order à la carte, but the real treat is the chef's three- to seven-course tasting menu, which cost between 65 and 110 euros, and can be served with or without wine pairings. Each plate is like a work of art, and the service is impeccable and friendly.