A stone bridge with broad steps and an iron parapet, over the rio di San Giovanni Crisostomo, between the campo of the same name and a campiello named after Flaminio Corner — the 18th-century historian of Venetian churches, author of the monumental Ecclesiae Venetae. An everyday crossing of the Cannaregio sestiere, a stone’s throw from the Rialto Bridge and the courtyards of the Milion.