Campo San Polo, the largest square in Venice after St Mark’s, is an open-air drawing room onto which two faces of the city’s sculpture look out: at number 2177, the pointed-arched portal of Palazzo Donà adorned with 14th-century reliefs of animals and floral motifs — a stone bestiary; and on the opposite side, at 2128, the sturdy Renaissance mass of Palazzo Corner Mocenigo, designed by Michele Sanmicheli with the monumental front on the rio (small canal) that you admire from the Ponte di San Polo.