Located under the bright and glittering Siam Paragon shopping mall, this ocean world is a must-visit for anybody who is in Bangkok. Being an underground aquarium itself is something that will blow your mind but once you know that this is also the largest aquarium found in all of Asia you will be thunderstruck. This place is an exhibit of fishes and is home to more than 30,000 kinds of marine life that come from different parts of the world. Within the ocean world, you will be able to spot anything and everything from penguins to shock and other colourful creatures.