The State of Vatican draws millions of pilgrims and art lovers to St. Peter Basilica, the Vatican Museums, and the Sistine Chapel. In addition to Michelangelo’s famous frescoes “The Last Judgement” and the “Creation of Adam” within the Sistine Chapel, the Vatican has a notable treasure-chest of splendid masterpieces.Castel Sant'Angelo was originally built to be a tomb for Emperor Hadrian and his family and it was finished in 139 AD. Despite its original purpose, Castel Sant’Angelo was almost immediately converted into a military building. In addition to serving that purpose, this is also the location where Pope Gregory I saw a vision of St. Michael the Archangel in 590, announcing the end of a great epidemic in Rome. To this day, a statue of St. Michael still adorns the top of the Castel.