The Perugia City Tour (tel. 075-5757) open-top minibus (6-7 times daily Apr-Oct 10:30am-7pm) can be an easy way to see the city for those with tired feet. A full circuit from Plaza Italia (buy tickets at the booth here) takes around 50 minutes (there's commentary in English). Book ahead to be sure of getting seats.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.