The Frankfurt Zoological Garden is the zoo of Frankfurt, Germany. It features over 4,500 animals of over 510 species on more than 11 hectares. The zoo was founded in 1858 and is the second oldest zoo in Germany, after Berlin Zoological Garden. It lies in the eastern part of the Innenstadt. Bernhard Grzimek was director of the zoo after World War II from 1945 until 1974.