Propeller Island, Berlin, Germany: Lars Stroschen is the German artist behind this quizzically named Berlin hotel, where each room is stranger than the next—and offers amenities you never knew you needed.
AquaDom, Germany The AquaDom in Berlin, Germany, is a 25 metre (82ft) tall cylindrical acrylic glass aquarium with built-in transparent elevator. It is located at the Radisson Blu Hotel in Berlin-Mitte. The DomAquarée complex also contains a hotel, offices, a restaurant, and the aquarium Sea Life Centre. The AquaDom was opened in 2004. It cost about 12.8 million euros. The overall construction of the aquarium was designed and built by International Concept Management, Inc..