A different route can be taken to tour the city, this time in the direction of Porta Nuova, starting from Piazza del Duomo, the cathedral square, onto which face the Bishop’s Palace (Palazzo Vescovile) built by the first bishop Usimbardi, Palazzo Renieri di Sotto, Palazzo Buonccorsi, and the Seminary (Seminario Vescovile). Walking along Via del Castello, you pass Palazzo Giusti, with its doors . . .