The popes were among the very first royalty to open their vast art collections to public viewing. Pope Julius II (1443 - 1513) began collecting sculpture during the Renaissance and, ever since, most popes have taken an active interest in art and in commissioning the best artists of their time.
Today you can view the Vatican's incredible collection while touring the so-called 'Vatican Museums', a huge complex of galleries and museums showcasing painting, sculpture, frescoes, tapestries and classical antiquities including Roman, Greek and Egyptian. There are, of course, also collections of religious art, papal portraits and, less obviously, carriages and automobiles.
Any visit to the Vatican should also include the famous Sistine Chapel and Raphael's Rooms. Leave plenty of time for winding your way through the museums and the narrow connecting corridors and staircases.