Schönbrunn Zoo in Vienna is the world’s oldest zoo still in existence and has already been voted Europe’s best zoo on five occasions. Today the Zoo at Schönbrunn is considered one of the best and most modern zoos in the world. Each year more than two million visitors come to see the panda baby, newborn elephants and many other rare animals. More than 700 kinds of animal live here - from the Siberian tiger to koalas and rhinoceros. Highlights are the giant rainforest house, the large South American enclosure and the ORANG.erie, home to Vienna's orangutans.
New and extensive enclosures and animal houses are added each year. But the zoo's historic charm is always preserved. The zoo is part of the Schönbrunn UNESCO world heritage site. In the summer of 1752, Emperor Franz I. Stephan von Lothringen, Maria Theresia's husband, took his royal guests to the newly constructed menagerie in the park at Schönbrunn Palace for the first time. Ever since then, the world's oldest zoo has been operating in Vienna.
https://www.wien.info/en/sightseeing/sights/imperial/schoenbrunn-zoo