St. Peter’s Basilica in Vatican City, an enclave in Rome, was constructed between 1506 and 1615. St. Peter’s is the most renowned work of Renaissance architecture and the largest church in the world based on interior measurements. Catholic tradition holds that St. Peter’s Basilica is the burial site of Saint Peter, chief among Jesus’s apostles and also the first Bishop, or Pope, of Rome. His tomb is said to be located directly below the high altar of the basilica, also known as the Altar of the Confession. The high, domed ceiling is ornately decorated with painted stucco depictions of Christ, several saints, and numerous other heavenly hosts. Gilt trim borders each image and creates an awe-inspiring grandeur throughout the entire space.