One day
Start at the moated Castello Estense and tour the ducal apartments, then see the cathedral and the medieval centre. Walk the arcaded Via delle Volte and the Jewish ghetto, with the MEIS museum, and have a cappellacci lunch in a trattoria. In the afternoon, head up into the Addizione Erculea for the Palazzo dei Diamanti and the grand avenues, then hire a bike and ride a stretch of the walls at sunset.