Gvozdansko Castle is a castle in Gvozdansko village, between the towns of Dvor and Glina and not far from Zrin Castle, in Sisak-Moslavina County, central Croatia.
Wikipedia https://en.wikipedia.org/wiki/Gvozdansko_Castle
Address (Unnamed Road), 44440, Croatia
Coordinates 45°7'59.857" N 16°12'56.458" E