Regarded as the holiest site in Christendom, St. Peter’s Basilica is a masterpiece of architecture right in the heart of Vatican City. This church, supposedly built where the Apostle St. Peter was crucified, started as a small chapel for the pilgrims. Today, it is a priceless masterpiece of Baroque and Renaissance art. Start the tour of the greatest Catholic church in the world with your expert private tour guide. Be stunned by Michelangelo’s Pietà and the Baldachin of the Pope by Bernini that marks the tomb of St. Peter’s located underneath. Marvel at the beauty of St. Peter’s Square. Admire the stone colonnade that decorates both sides of the square, another masterpiece by the Baroque architect Gian Lorenzo Bernini. End your tour with a visit to the Tomb of the Popes and the famous Cupolone, the dome designed by Michelangelo.