St. Peter's Basilica is the most iconic building in Vatican City. It serves as a magnificent monument to Bernini's talent. The church is massive and can accommodate tens of thousands of people. It's currently filled with breathtaking artistic treasures, including the "Pieta", created by Michelangelo. Following the narrow staircase, visitors are lead to the observation deck outside of the dome of the main hall of the cathedral. It is a fantastic place to get a panoramic view of Rome. Here one can also see the 13 statues on the top of the cathedral, with Jesus Christ holding a cross in the middle.