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.
Christianized sites
St. Peter's Basilica, the church of the Vatican, is traditionally located at the burial place of Simon Peter, and most scholars parties agree that the basilica was built on top of a large necropolis on the Vatican Hill. In 1939, an excavation underneath the "grottoes" which lie directly under the current Basilica, uncovered several surviving Roman mausoleums from the necropolis, and in the area directly under the high altar, below the grottoes, the excavators found a structure resembling a temple that they named the "aedicula" (meaning "little temple").