The southern of the old town's two great squares, named for three partisans hanged here by the Germans in 1944. Today it is a quieter, more commercial space than Piazza Cavour, anchored at one end by the octagonal Tempietto di Sant'Antonio and at the other by the slim brick clock tower.
The eastern side opens onto Corso d'Augusto, the main shopping street; the western side leads to the Tempio Malatestiano. Almost any walk around the historic centre passes through here.