A whiff of Berlin floats above the dancing crowd at this barge-based, floating club known for its top techno talent. And like its Germanic club cousins, this one has managed to get a permit to stay open 24 hours on the weekends, making it possible to literally rock around the clock. A slew of dance parties, live performers, and guest DJs play non-stop from Friday to Sunday. Wear something cool; the bouncers are picky.