The Lainzer Tiergarten is a 24.50 km² wildlife preserve in the southwest corner of Vienna, Austria, 80% of it being covered in woodland. It dates back to 1561, when Ferdinand I created it as a fenced-in hunting ground for his family to use. Since 1919, it has been open to the public. Its name consists of its location by the Lainz district of Vienna's 13th District, and Tiergarten, which means zoo.