Arrive in Rome (Fiumicino/FCO). Take Leonardo Express or taxi to central Rome and drop luggage at your economy hotel (Hotel Regno). This gets you ready for a full day; if early check-in isn't possible ask to store bags.
Visit the Colosseum with access to the Forum and Palatine Hill to understand Imperial Rome’s heart; book tickets in advance to skip long lines. Open times commonly ~8:30am–7:00pm depending on season.
Walk through Rome’s historic center visiting the Pantheon (free entry), Piazza Navona and the Trevi Fountain; these are outdoor/monument stops great for photos and gelato.
Visit the Vatican Museums, Raphael Rooms and the Sistine Chapel. Museums usually open ~9:00am and close late afternoon; book timed tickets online to avoid queues.
Stroll the Villa Borghese gardens and enter the Borghese Gallery to see Bernini sculptures and Caravaggio paintings; gallery operates on timed entries (commonly 9:00–19:00).
Take a 2–3 hour walking tour covering Trevi, Piazza Navona, and lesser-known lanes to learn Roman history and food culture; many tours start around 9:00–10:00.
Travel from Pisa to Venice by regional/intercity trains; journey ~3–4 hours depending on connection. Book a mid-afternoon train to arrive in Venice in early evening.
Visit the Duomo cathedral and rooftop terraces for city views; terraces open typically 9:00–19:00 (seasonal). Book tickets for terrace lift access to save time.
Take a ferry across Lake Como to Bellagio and explore the lakeside town, villas and viewpoints; ferries run frequently but check seasonal timetables (typically 8:00–18:00).
Depart Milan for home or next destination. If you have a late flight, you can squeeze in an extra museum visit in the morning—check times and allow buffer.