This vast square is seductive both for the harmony of its proportions and for the variety of its buildings, both civic and religious. The cathedral that is in front of its baptistry, the old Episcopal palace, the Palazzo Communale, which is linked by an arch to the cathedral, and the Palazzo Pretorio. Beyond is a medieval tower, the torre di Catilina: it was at Pistoia that Catiline, the Roman conspirator who so tried the patience of poor Cicero, was defeated and killed in 62 BC.