The Museum of Cieszyn Silesia in Cieszyn is one of the oldest public museums in Central Europe and the oldest public museum in Poland, set up by father Leopold Jan Szersznik in 1802.
Wikipedia https://en.wikipedia.org/wiki/Museum_of_Cieszyn_Silesia
Official Website http://www.muzeumcieszyn.pl/
Coordinates 49°44'52.012" N 18°38'1.782" E