Schönbrunn Zoo, founded in 1752 by Emperor Franz I, husband of Maria Theresia, and built by J. N. Jadot, has since been in continuous use, making it the world´s oldest zoo. Renovated in 1945 after heavy bomb damage. The zoo is home to approx. 850 species and approx. 4,650 specimens. "Tiroler Hof" farm (rare breeds of cattle and goats) and children´s zoo. New enclosure for big cats finished in 1994.