In the council chamber of the town-hall (1288-1323) is a fresco by Lippo Memmi of the Madonna enthroned of 1317, copied closely from the similar fresco (the "Majestas") by his master Simone di Martino in the Palazzo Pubblico at Siena; there is also a curious frescoed frieze of 1291, with knights in armour.
The barons alternated between the extravagances of Western chivalry and the attractions of Eastern luxury: they returned from the field to divans with frescoed walls and floors of mosaic, Persian rugs and embroidered silk hangings.
It is an old town, with narrow irregular colonnaded streets and some interesting old frescoed houses.
Some scanty fragments of the lower part of the frescoed walls have survived; but they are not enough to give any information as to the work of Polygnotus.
Above the floor; the walls were frescoed or lined with marble, and for ornament there were probably statues.