Italy's "Golden Triangle" includes Venice, Florence, and Rome, each reflecting distinct cultural elements. Efficient travel begins in Venice, using high-speed trains connecting all cities. Suggested itineraries include 3 days in Venice, 4 in Florence with a day trip to Tuscany, and 5 in Rome. In Venice, prioritize St. Mark's Basilica and Doge's Palace while enjoying local pastries. Florence’s highlights include the Uffizi and Accademia galleries, with budget tips focusing on passes and local markets. Rome’s must-sees are the Colosseum, Vatican Museums, and Trastevere neighborhood. Overall, budget around €50-70 per day and embrace Italian culture and pace.