Marvel Venice ❤ Piazza San Marco, one of the most famous squares in Italy, is the cultural heart of Venice ??. With St. Mark's Basilica, Doge's Palace at one end, the Campanille in the center, piazza is one of the most visited sights in Venice ?. Constructed in the 9th century in front of San Mark's Basilica, the Piazza San Marco is the only square in Venice which is called a Piazza. It is also just steps from famous Bridge of Sighs & the Rialto Bridge. Fun fact ??: Did you know the Piazza San Marco was enlarged in the 12th century after a canal and dock where filled in? ?Piazza San Marco, Venice ??