Vatican City
Vatican City has a reasonably well-developed transport network considering its size (consisting mostly of a piazza and walkways). A state that is long and wide, it has a small transportation system with no airports or highways. The only aviation facility in Vatican City is the Vatican City Heliport. Vatican City is one of the few independent countries without an airport, and is served by the airports that serve the city of Rome, Leonardo da Vinci-Fiumicino Airport, and to a lesser extent Ciampino Airport.
Vatican Hill
Before the Avignon Papacy (1305–1378), the headquarters of the Holy See were located at the Lateran Palace. After the Avignon Papacy the church administration moved to Vatican Hill and the papal palace was (until 1871) the Quirinal Palace, upon the Quirinal Hill. Since 1929, part of the Vatican Hill is the site of the State of the Vatican City. However, the cathedral of the Bishop of Rome, the Pope, is not St. Peter's in the Vatican, but Basilica di San Giovanni in Laterano, which is extra-territorially linked, as indicated in the Lateran Pacts signed with the Italian state in 1929, with the Holy See.