The Aquadom is the world’s largest cylindricalaquarium. The aquarium is filled with nearly 1 million liters of seawater and has 1,500 tropical fish of 56 species and tiny reef-like mounds at its base.

A giant aquarium containing a million litres of water in the lobby of the Radisson Blu in Berlin has burst, flooding the hotel and nearby streets. The "AquaDom" - home to 1,500 fish - is 15.85m high ...