Sacred Destinations Destinations St. Peter's Basilica St. Peter's Basilica Photos 25798 × share full URL share short URL embed link code photo 106 of 126 Previous | Next Tomb of Pope St. Boniface IV Tomb of Pope St. Boniface IV (d.615), who consecrated the Pantheon for Christian worship, under the Altar of St. Thomas in the left transept of St. Peter's Basilica. Credit: Holly Hayes