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.
Lateran
The most famous Lateran buildings are the Lateran Palace, once called the Palace of the Popes, and the Basilica of St. John Lateran, the cathedral of Rome, which although part of Italy is a property of the Holy See, which has extraterritorial privileges as a result of the 1929 Lateran Treaty. As the official ecclesiastical seat of the Pope, St. John Lateran is the Papal "cathedra". The Lateran is Christendom's earliest basilica.