One of the best-known zoos in Europe, Zurich's Zoological Garden contains some 2,200 animals of about 260 species. It also has an aquarium and an open-air aviary. You can visit the Africa house, the ape house, and the terrariums, along with the elephant house and the giant-tortoise house. There are special enclosures for red pandas, otters, and snow leopards, and a house for clouded leopards, tigers, Amur leopards, and Indian lions. The zoo contains a replica of a tropical rainforest, lodged within a state-of-the-art building which successfully replicates the temperatures, light levels, and humidity of Madagascar. This added attraction has become one of the most frequently visited attractions in Zurich, and one of the prides of the zoo.