Fodor's Expert Review Basilica di San Francesco

The famous Piero della Francesca frescoes depicting The Legend of the True Cross (1452–66) were executed on the three walls of the Capella Bacci, the apse of this 14th-century church. What Sir Kenneth Clark called "the most perfect morning light in all Renaissance painting" may be seen in the lowest section of the right wall, where the troops of Emperor Maxentius flee before the sign of the cross. Reservations are required and can be made online.