Concierge.com's insider take:
If the crowds of tourists start to make you feel like you're wandering through a theme park rather than a city, make for a market. Here, you'll find real Venetians doing refreshingly everyday things. The biggest, liveliest, and most colorful is the Rialto Market (pictured), which runs Monday to Saturday mornings at the northwestern foot of the Rialto Bridge. Squeeze past the purveyors of nylon soccer shirts in the Ruga degli Orefici and Ruga degli Speziali and strike north: You'll find row upon row of cheese stalls, meat vendors, benches piled with fruit and vegetables, and a Gothic-looking pescaria (covered fish market). All are swarming with sandpaper-voiced old ladies, young mothers using strollers to cut a swath through the crowd, and dapperly dressed professionals laying in supplies for the evening's dinner party. Moored at the far eastern end of Via Garibaldi and on the northern edge of Campo San Barnaba are two more quintessentially Venetian emporia: large barges that on weekday mornings groan under heaps of produce, while shoppers shout their orders from the fondamenta.