Avoid the traffic and travel to Florence via train, arriving in the heart of the city for four hours of independent exploration. If you have already been to Florence, you will probably want to explore this glorious city again at your leisure. Begin with a relaxing one-hour train ride in a train car with air conditioning and restrooms for your comfort and outlets for charging all your electronic devices. Exit the train and you’re in the middle of Florence’s historic city center, where you’re escorted to Cathedral Square and left to discover this gorgeous city however you like. You may want to step inside the city’s crowning jewel, The Duomo — the 15-century octagonal dome, an architectural beacon, can be seen from miles around. See masterpieces from da Vinci, Michelangelo and more in the many museums, including the Uffizi Gallery and the Palatine Gallery. Cross the River Arno on the Ponte Vecchio, the famous medieval bridge — jewelry shops have occupied this stone bridge since the 16th century. Enjoy lunch in a café, and be sure to indulge in some gelato. And don’t forget, Florence has some of the finest shops in Italy, so save some time to browse boutiques as you amble along streets dating back to the Renaissance.