Venice is a Supercity and should be visited though the locals hate the visitors. Many of my friends recommended me not to visit due to stories of how dirty the canal is, Venice is a must visit. Once the most powerful states of the Mediterranean, the Grand Canal and the Story of how the Island was build to save the State from attacks in the final days of Roman empire. It is important to stay for two complete days and cover one day on boat and one day of foot.