It was the splendour and scandal of the age. In 1506 the ferociously ambitious Pope Julius II tore down the most sacred shrine in Europe - the millennium-old St. Peter's Basilica built by the Emperor Constantine - to erect a better basilica. Construction of the new St. Peter's spanned 200 years, embroiled 27 popes and consumed the genius of the greatest artists of the age - Michaelangelo, Raphael, Bramante and Bernini. In this swift and colourful...