The wow factor of The Deep starts on the outside, with the Sir Terry Farrell-designed Millennium Commission exterior – resembling in part a huge child’s game, and the submarine Nautilus from the Captain Nemo stories. Inside, the aquarium is no less impressive: it holds more than half a million gallons of water, and is home to some of the most amazing creatures in the sea. There are seven species of shark on display, tons of teeming tropical fish, and the deepest viewing tunnel in Europe. The Deep’s piece de resistance is its “Endless Oceans” tank, which is 33ft deep and contains some of the biggest and best animals the ocean has to offer!