The Vatican is the world’s smallest country, although it’s home to one of the greatest museums in the world, as well as St. Peter’s. A Vatican guided tour gives you an insider’s view of this tiny yet fascinating state. St. Peter’s is one of the largest churches anywhere, and is home to priceless sculptures and other treasures. The museum houses over 70,000 items and has an especially good collection of Renaissance art and Roman artifacts. And although you can visit the Vatican’s main sights yourself, a tour often takes you behind the scenes where most other tourists don’t venture. A tour often lets you bypass the long lines of people waiting to visit, something that’s a big advantage when you’re trying to maximize your time. Tours of the Vatican can be booked online, or in person at the Rome tourist office.