Venice is a city like no other, a marble maze of turquoise canals criss-crossed by beautiful bridges, overflowing with palaces, churches and charming little piazzas. No matter how many times you've seen it in photographs, that first glimpse of the Grand Canal will simply take your breath away; it hardly seems credible that such an eye-popping scene could exist outside of a Canaletto painting. Of course Venice is a city that draws big crowds, especially in summer, but don't let this put you off; even the busiest areas are never more than a few steps from a quiet courtyard or a secluded square.