Copenhagen Zoo is a zoological garden in Copenhagen, Denmark. Founded in 1859, it is one of the oldest zoos in Europe. It comprises 11 hectares and is located in the municipality of Frederiksberg, sandwiched between the parks of Frederiksberg Park and Sondermarken. With 1,161,388 visitors in 2008 it is the most visited zoo and 4th most visited attraction in Denmark. The zoo is noted for its new Elephant House designed by the World-famous British architect Sir Norman Foster. The zoo maintains and promotes a number of European breeding programmes and is active in the safeguarding several endangered species.
Copenhagen Zoo was founded by the ornithologist Niels Kjaerbolling in 1859. He was given the summer garden of "Prinsess Vilhelmines Have" (The garden of Princess Vilhelmine) by the chief directorate of Copenhagen. The animals that the visitors could contemplate at the opening were eagles, chickens, ducks, owls, rabbits, a fox, a seal in a bathtub and a turtle in a bucket. In the early years the zoo focused on showing as many different types of animals as possible, but as animal welfare later became an issue, the number of different species has dropped in favour of more space to each animal.
One of the most notable animals kept there was a male slow worm that lived there from 1892 to 1946.