 Only traces remain of the latter's original structure, what is visible now dating to an 18th-century renovation.The town is also home to an unfinished rotunda designed by Alessandro Antonelli, the Baroque church of San Rocco; the Sacro Monte di Belmonte is not far, though in the communal territory of Valperga.Architects Carlo and Amedeo di Castellamonte were born in the town.