There are a few gems from medieval Berlin if you're up to searching for them. Not much is left after the bombs and the DDR but enough for the city to be taken very seriously. This is old Berlin - the two settlements of Berlin and Colln.
Go west and south of the Fernsehturm, across the busy Muhlendamm/Grunerstrasse road from Nikolaivertel's reconstructed old squares (and the magnificent Nikolaikirsche, the oldest church in the city), you seem to be in a characterless quarter with nothing to recommend it. But search out Klostersrasse, then Waisenstrasse and you find Zur Letzen Instanz, an old, much repaired bar/eatery in a narrow leafy street, built in 1621 and with a fine reputation for German cuisine and a history of serving Napoleon and Beethoven among many others. Some say it's the oldest restaurant in Berlin. There's a small beer garden to the side and just beyond that a genuine stretch of old Berlin wall from the 13th Century. A bit further past two bronze sculptures to the left there's the magnificent Gothic ruin of a Francescan monastery from the 14th century set in trees, but not far from the roaring traffic where you'll find a number of circular exhibition spots celebrating the city's 775th anniversary, with detailed info on the Berlin beneath your feet (English translation). Great to find such quiet gems amid so much noise and ugliness, just across a six lane highway from Alexanderplatz.
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