Wissen is a town in the district of Altenkirchen, in Rhineland-Palatinate, Germany. It is situated on the river Sieg, approximately 12 km northeast of Altenkirchen. Wissen is the seat of the Verbandsgemeinde Wissen.
Wikipedia https://en.wikipedia.org/wiki/Wissen
Official Website https://www.wissen.eu/
Coordinates 50°46'58.524" N 7°44'4.115" E
