The castle 't Huys in Nuwendore was a fortress built by Floris V to keep the rebellious West Frisians in check. The castle was built in the 13th century, at the same time as the castles in Medemblik, Wijdenes and Oudorp. The castle was destroyed at the end of the 14th century, probably as a result of a dike breach. The foundations were preserved by the National Monument Care in 1960 and a path has been made to it. The ruin is located in a bend of the West Frisian Zeedijk between Eenigenburg and Krabbendam on the Burchtweg. A booklet about this is for sale at the tourist office.