Castelli Aperti / Open Castles takes place each year from April to October, an event that foresees the opening of around sixty historic buildings all over the region of Piedmont, and offers visitors a rich choice of castles, museums, historic buildings, villas and gardens to visit.

The event is promoted by the Piedmont Region, the provinces of Cuneo, Asti and Alessandria with the support of the Piedmontese Association Foundation.