The Lainzer Tiergarten is a 24.50 km² (6,054-acre) wildlife
preserve in the southwest corner of Vienna, Austria, 80% of it
being covered in woodland. It dates back to 1561, when Ferdinand
I of Austria 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 (literally,
"animal garden"). The Lainzer Tiergarten is located mostly in
Vienna's 13th district, with a small adjacent portion lying in
Laab im Walde, Lower Austria. The Wien River is located to its
north, the Liesingerbach to its south. The Lainzer Tiergarten
was created by Emperor Ferdinand I in 1561, when the area was
fenced off by a wooden fence, to allow for a private hunting
ground. In 1781, the wooden fence was replaced by a stone wall.
After the fall of the Austro-Hungarian Empire, the hunting
grounds became a public nature preserve, and have remained so
ever since, with the exception