The Paris Aquarium (also known as Cinéaqua) is a world class festival of the sea, and it's only five minutes away from the Eiffel Tower. If you're visiting Paris with your family, this is one to check out. One of the oldest aquariums in the world (built in 1867), it has more than 13,000 creatures who call its depths home. Featuring mermaid shows, an aquatic cinema and a shark basin stacked with the apex predators, this is an incredible way to add a deep blue dimension to your trip to the center of Paris.