Pistoia is a city in Italy’s Tuscany region. Set around its central Piazza del Duomo are the Cathedral of San Zeno, which has a silver altar, and the octagonal Battistero di San Giovanni in Corte baptistery. Also on the square is the Palazzo dei Vescovi, an 11th-century palace housing a number of museums. On the nearby Piazza della Sala, the Pozzo del Leoncino is a well with a marble frame.