Aquadom, największe cylindryczne akwarium

What do you do with a 25-meter-high acrylic glass cylinder, 238,000 gallons of sea water, 2,600 fish from 56 different species, and two divers? The Aquadom, the largest cylindrical aquarium in the world, that's what. In its core there's an elevator that travels through a cylinder of glass.
http://gizmodo.com/358056/aquadom-is-largest-cylindrical-aquarium-on-the-planet