After lunch, walk a short distance (around eight minutes) to the Church of Saint Augustine (Chiesa di Sant’Agostino), the most important church in San Gimignano after the Duomo. The church, built in the 13th century, is large with Romanesque and Gothic characteristics, and has a very simple outer appearance. Once through the door you’ll find the inside bursting with priceless masterpieces, including frescoes and sculptures by Medieval and Renaissance artists such as Piero del Pollaiolo, Bartolo di Fredi and Benozzo Gozzoli. The church features three chapels, the largest of which houses the remains of Saint Bartolo, while altars and frescoes alternate along the length of the wide nave. Even the floor deserves admiration: it was made centuries ago by Andrea della Robbia in beautiful majolica tile.