Piazza della Cisterna is a must see. It is located on the top of the hill on which the Tuscan town is built, so it’s a good place to rest after the terrible climb!It takes its name from the octagonal well located in the center, and was built by the will of the Podesta Guccio of Malavolti, whose coat of arms (a stair) is carved on the stone. It is certainly the best piazza in San Gimignano and one of the most beautiful in Tuscany. If Piazza del Duomo is the political and religious center, Piazza della Cisterna is the commercial square because here were the workshops and the market and the carousels.