The Okinawa Churaumi Aquarium is the world’s second largest. This aquarium has two groundbreaking accomplishments. For the first time in the world, this tank holds more than one whale shark.

Aside from this, it is also the first time that four manta rays have ever been held in one tank.The aquarium holds about 7,500 tons of water and is 10 meters deep!

About 130 tons of glass was used to build this tank. Each wall is 60cm thick, 22.5 meters wide, and 8.2 meters high. It’s located in the Expo Park in Motobu Town, the north of Okinawa.