Palazzo dei Priori by Mikebond
Also known as Palazzo del Comune, since it houses the city hall, this building dates of 1333 but it was remade several times. My parents and I visited an exhibition of paintings by contemporary naive painter Antonio Ligabue (1899-1965). We could just take a picture of the photos of the artists, but not of his paintings.Back to the palace, it is not so relevant from the artistic point of view, however you can climb its bell-tower and enjoy a great view over the town from above.
The second pic of this tip should represent a kind of clock located at the top of the tower, but I don't know anything about it.