POI's creator (Voyajo Team)
The Narrenturm (Fool's Tower) in Vienna is Europe's oldest building for the accommodation of mental patients. Ulrike Abel-Wanek, Pharmazeutische Zeitung, 2007. Retrieved 14 September 2010. Built in 1784, it is next to the site of the old Vienna General Hospital (today a university campus), and is (...) (from Wikipedia)