Vatican City, a city-state surrounded by Rome, Italy, is the headquarters of the Roman Catholic Church. The centerpiece of the Vatican and one of the best places to visit, the magnificent St. Peter's Basilica which was built between the 16th and 18th centuries. The work of famous artists begins before you enter the church: in the portico are an equestrian statue of Constantine by Bernini and fragments of a mosaic by Giotto above the main doorway . It's from the old church, as are the double bron