The BBC reports that a massive hotel lobby aquarium has exploded in a Berlin Radisson Blu hotel. The lobby design feature was called the “Aqua Dom” and was claimed to be the largest free-standing cylindrical aquarium in the world. It was 82 feet high and held 264,000 gallons of water. The 1,500 tropical fish in the tank were said to have all died—either from the explosion, lack of water or freezing cold temperatures on the street where they landed.