The main spine of the old town runs north from Piazza della Repubblica past arcaded medieval and Renaissance facades, many of them painted with traces of the original frescoes. The arcades are deep and shaded, the buildings tall, and the street has the unmistakable feel of a Venetian terraferma trading town — somewhere between Treviso and Padua in character but quieter than either.
Walk the full length of it, then double back along the river. The mix of brickwork, painted plaster, crenellated rooflines and tall mullioned windows is consistent across nearly the entire street, which is rare for a small Italian town. The Palazzo Comunale, with its merlons and double loggia, sits roughly in the middle and is one of the most photographed buildings in town.