The mightiest of Venetian monuments, the one that really shows the greatness of Venice is undoubtedly the Basilica of San Marco. It was built over several centuries, frequently transformed and enriched with precious treasures, often from the Far East. Its architecture, a mixture of Byzantine, Roman and Venetian, is the work of artists and craftsmen coming from all over. It can be considered a real laboratory, a living organism, developing and transforming over the centuries.