A popular destination for the posher crowds, the Potsdamer Platz dancehall is housed in a gorgeous vaulted cellar and furnished in decorative- chic style. Fri–Sat 11pm– 6am. www.adagio.de. Marlene- Dietrich- Platz 1. The bartender at speakeasy-style Bar Buck & Breck (p. 52) will mix your cocktail according to your mood.