This video explores some of the ancient and early Christian artifacts hiding in plain sight in St. Peter’s Basilica.
Further Reading
James Lees-Milne, Saint Peter’s: The story of Saint Peter’s Basilica in Rome (Dublin, 1967) (available online)
Charles Stinger, The Renaissance in Rome (Indianapolis, 1985)
Jocelyn Toynbee and John Ward-Perkins, The Shrine of St. Peter and the Vatican Excavations (London, 1958)
William Tronzo (ed.), St. Peter’s in the Vatican (New York, 2005)
http://stpetersbasilica.info/index.htm