Housed in the old castle, this museum contains many different collections. There are some craftwork objects (14 -19C) and a large section devoted to prehistory (objects from a Celtic tomb) and some musical instruments and clocks, as well as the religious statuary. It's a museum that will please everyone, and don't miss the treasury tower and, as its name suggests, the treasures it contains (from the ducal chamber of arts and marvels).