Every year, millions of visitors are drawn to the 18th century Trevi Fountain. Maybe they love Federico Fellini’s 1960 movie “La Dolce Vita” in which Anita Ekberg cavorts in the Trevi Fountain; maybe they admire the architecture of the largest fountain in Rome; or perhaps they are simply attracted by the sound of water. If you want to make sure that you will come back to Rome, throw a coin over your left shoulder into the fountain.