Berlin's zoo holds a triple record as Germany's oldest, most species-rich and most popular animal park. It was established in 1844 under King Friedrich Wilhelm IV, who not only donated the land but also pheasants and other animals from the royal family's private reserve on the Pfaueninsel. The menagerie includes 20,000 critters representing 1500 species, including orangutans, koalas, rhinos, giraffes and penguins.
Enter via the Lion's Gate on Hardenbergplatz or the Elephant Gate on Budapester Strasse.