Castel Gandolfo

Great experience! Exactly as it is on the app, with purschased voucher you go to the entrance (you can easily get there by foot, bus or uber depends on your location). At the entrance they check your temperature and green pass for COVID. After that you go inside and report to the counter where they exchange your voucher for ticket and that's where your sightseeing starts! Don't worry if you don't know where to go or start at first, the staff is very friendly and approachable. Beautiful museum and an invaluable experience, especially the Sistine Chapel.