Ciao! I'm so excited to help you plan your family-friendly Italian adventure! Here's a delightful 3-day itinerary for you:

Day 1: Rome

Start your day with a visit to the iconic Colosseum, where your family can immerse themselves in the history of ancient Rome. After that, head to the Roman Forum and Palatine Hill to explore more ruins and learn about the city's fascinating past. For lunch, indulge in some delicious pizza or pasta at a local trattoria. In the afternoon, visit the Vatican City to marvel at St. Peter's Basilica and the Vatican Museums, including the famous Sistine Chapel. End your day with a leisurely stroll around Piazza Navona and enjoy some gelato.

Day 2: Florence

Take a morning train to Florence, the heart of Tuscany. Start your day at the Uffizi Gallery, home to masterpieces by artists like Michelangelo and Botticelli. Afterward, visit the Florence Cathedral, also known as the Duomo, and climb to the top of the dome for panoramic views of the city. For lunch, try some authentic Tuscan cuisine at a local osteria. In the afternoon, explore the charming streets of Florence, visit the Ponte Vecchio bridge, and maybe even take a leisurely walk up to Piazzale Michelangelo for breathtaking sunset views.

Day 3: Venice

Catch an early train to Venice, the city of canals and gondolas. Start your day with a visit to St. Mark's Square and the Doge's Palace, where you can learn about the history of Venice and its unique architecture. Take a gondola ride through the picturesque canals and enjoy the beauty of the city from the water. For lunch, try some fresh seafood at a local trattoria. In the afternoon, visit the Rialto Bridge and explore the charming neighborhoods of Venice, getting lost in the narrow streets and discovering hidden gems. Don't forget to try some traditional Venetian cicchetti (small snacks) before heading back to your hotel.

I hope this itinerary helps you make the most of your 3 days in Italy with your family! Buon viaggio!