Vatican City has a reasonably well-developed transport network considering its size (consisting mostly of a piazza and walkways). As 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.