In the morning, explore ancient Rome at the Colosseum, then visit the Vatican City in the afternoon to see St. Peter's Basilica. At night, take a stroll at the Trevi Fountain.
Take a morning train to Florence and visit the Accademia Gallery to see Michelangelo's David. In the afternoon, walk through the Uffizi Gallery and see Renaissance art. At night, see the Ponte Vecchio Bridge.
Spend the morning at the Leaning Tower of Pisa and the surrounding Piazza dei Miracoli. In the afternoon, visit the Camposanto Monumentale and the Pisa Cathedral. At night, walk through the old town.
Take a morning train to the Cinque Terre National Park and hike the trails between the five coastal villages. In the afternoon, relax at the beach or take a boat tour. At night, enjoy fresh seafood and local wine.
Take a morning train to Venice and visit St. Mark's Square, the Doge's Palace, and the Bridge of Sighs. In the afternoon, take a gondola ride or visit the colorful island of Burano. At night, enjoy the city's nightlife.
Spend the morning at the Verona Arena and Juliet's House. In the afternoon, visit the Piazza delle Erbe and the Scaliger Tombs. At night, enjoy a glass of local wine at a traditional osteria.
Take a morning train to Milan and visit the famous Duomo Cathedral and Galleria Vittorio Emanuele II. In the afternoon, see Leonardo da Vinci's The Last Supper and visit Sforza Castle. At night, enjoy Milan's vibrant nightlife.
You may want to consider visiting the Amalfi Coast, the Sistine Chapel, or the Pompeii ruins. A side trip to Bologna, known for its cuisine, or San Marino, the world's oldest republic, could also be fun. You can maximize your fun by trying local street food, visiting markets, and attending free concerts or exhibitions. Make sure to wear comfortable shoes and dress warmly as it can be cold in December.
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