20/20: Secrets of the Sistine: Michelangelo's Mystery

For centuries, people of all faiths have visited Rome to see Michelangelo's stunning masterpiece, the ceiling of the Sistine Chapel. It is arguably the most revered religious painting in Christendom. But is it possible that Michelangelo's art work in the Sistine Chapel contains insults aimed at the Pope? Martin Bashir reports on whether there are secrets in the paintings that nobody noticed until the ceiling's recent restoration. He travels from Florence to Rome, interviewing renowned Michelangelo scholars, theologians and the authors of a controversial new book, The Sistine Secrets: Michelangelo's Forbidden Messages in the Heart of the Vatican, to examine whether hidden meanings could exist.