Bikini Berlin is another showstopper in the high-on-design 25hours hotel franchise, which has supplemental locations in Frankfurt, Hamburg, Vienna and Zurich . Designed by Werner Aisslinger, the Berlin edition nestles between the Berlin Zoo and Breitscheideplatz with 149 rooms, a monkey bar, a bakery, a DJ corner, kiosk, a rooftop terrace and a sauna with a view of the zoo.