The Frankfurt Zoological Garden is the zoo of Frankfurt, Germany. It features over 4,500 animals of more than 450 species on more than 13 hectares. The zoo was founded in 1858 and is the second oldest Zoo in Germany. It lies in the eastern part of the Innenstadt (inner city). Bernhard Grzimek was director of the zoo after World War II from 1945 until 1974.