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.
List of diplomatic missions to the Holy See
This page lists diplomatic missions accredited to the Holy See, the government of the Catholic Church and the temporal ruler of the Vatican City. 87 countries currently maintain embassies to the Holy See. The Vatican City State, over which the Holy See is sovereign, is the smallest independent entity in the world and its size renders any resident diplomatic community impractical. Therefore, all embassies to the Holy See are located in Rome making Vatican City one of only two sovereign states, the other being Liechtenstein, with no resident embassies located within its territory. This leads to the unique situation that the Embassy of Italy to the Holy See is based on its home territory. This also means that an embassy of the Republic of China (more commonly known as Taiwan) to the Holy See is located in Italy, which does not recognize the Republic of China.