Iconic Piazza San Marco, also known as St. Mark's Square, is Venice's grand civic stage: basilica mosaics, the Doge's Palace, arcaded Procuratie, and the Campanile all meet beside the lagoon. Stand near the Napoleonic Wing and the view opens like a painted procession.
For a first visit, book a guided San Marco combo or walking tour to connect the square, nearby monuments, and crowd-heavy entry points with less guesswork.