The Hermannskogel is a hill in Döbling, the 19th district of Vienna. At 542 metres above sea level, it is the highest natural point of Vienna. It lies on the border to Lower Austria.
The Habsburgwarte, standing atop the Hermannskogel, marked the kilometre zero in cartographic measurements used in Austria-Hungary until 1918.
Wikipedia https://en.wikipedia.org/wiki/Hermannskogel
Address 1190, Austria
Coordinates 48°16'14.565" N 16°17'40.484" E
