The Castle Museum is located in Nideggen Castle in the county of Düren, in the German state of North Rhine-Westphalia.
Wikipedia https://en.wikipedia.org/wiki/Castle_Museum,_Nideggen
Official Website http://www.burgenmuseum-nideggen.de/
Email burgenmuseum@kreis-dueren.de
Phone +49 2427 6340
Coordinates 50°41'19.715" N 6°28'38.414" E