With an unmarked entrance – look for the iron door under the train overpass – and strict entrance policy, this grown-up bar/lounge is as exclusive as Berlin gets. Unlike the generally relaxed and cheerily down-at-heel vibe you'll find around much of the city, this is where the well-heeled come to ogle each other and be seen sipping innovative drinks in a tubular, steel-ceilinged interior, lit by eerily eye-like 3D installations.
If you make it in, do try a bracing Wasabi cocktail in summer or a malt whisky served with local pine honey in winter. Go late, look sharp. There’s also a restaurant called the Backroom Cantina, serving pricey, unremarkable fusion food.