The Oldofredi Castle is one of the oldest and best preserved in the Brescia area. It stands on an area inhabited since Roman times and takes its name from a noble family from Iseo.
It houses some rooms, can be reserved for events, contains a restaurant, the municipal library, some cultural associations and, in the former church of San Marco, the civic hall and the War Museum.
The fortified complex represents one of the best-preserved examples of Lower Medieval military architecture in the province of Brescia. The castle was traditionally called Oldofredi because of the presence in Iseo of this noble Ghibelline family, who were friendly to the Visconti and the Scaligeri and fierce opponents of the Republic of Venice.