The ricetto is a medieval structure typical of Piedmont; a medieval grouping of houses surrounded by walls where the inhabitants of the countryside took refuge in case of danger. The …
From here you go up to the Roppolo Castle overlooking Lake Viverone. There is also a beautiful panoramic point. The castle can be visited by booking entry on the official website.
Valdengo castle is a complex of buildings of medieval origin, it was the center of the lordship of a Biellese branch of the Avogadro family. it.wikipedia.org/wiki/Castello_di_Valdengo