of the Papacy: Roman and Byzantine Empire, Barbarians Kingdoms, Papal
States, Great Schism, Crusades, Communes, Babylonian captivity,
Renaissance, Protestant Reformation, Vatican City.
of Popes: from St. Peter to Benedict XVI.
of the Vatican: Saint Peter's Square, Saint Peter's Basilica, Sistine
Chapel, Raphael Rooms, Vatican Library, Vatican Museums.
of Sacred Rome: Holy See Properties, Churches, Catacombs.