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"The AquaDom in Berlin, Germany, is a 25 metre 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.. The acrylic cylinder was constructed by the U.S. company Reynolds Polymer Technology. It is now the main attraction of the Berlin Sea Life Centre.
The outside cylinder was manufactured on-site from four pieces; the inside cylinder for the elevator was delivered in one piece. The Aquadom is the largest acrylic cylindrical aquarium in the world, with a diameter of about 11 metres, built on a 9 metres tall foundation. Filled with 1,000,000 litres of water, it contains over 1,500 fish of 50 species. The feeding of the fish and the cleaning of the fish tank is performed daily by 3-4 divers. The fish need 8 kg fish food."
You beat me to it! I just found this slideshow and was going to post it. Seems like a good selection, from Australia, Europe, North America. I notice, however, that Latin America is conspicuously absent. Are there no good aquariums there?