World Largest Aquarium Tank

World's largest aquarium is located within the Ocean Expo Commemorative National Government Park in Okinawa, Japan. The main tank, called the Kuroshio Sea, holds 7,500 cubic metres (1,981,000 USgal) of water and features an acrylic glass panel measuring 8.2 by 22.5 metres (27 by 74 ft) with a thickness of 60 centimetres (24 in), the largest such panel in the world when the aquarium was opened.