The properties of the Holy See are regulated by the 1929 Lateran Treaty signed with the Kingdom of Italy. Although part of Italian territory, some of them enjoy extraterritoriality similar to those of foreign embassies, including tax exemptions.[1][2] Those living within these properties are still required to obtain the legal documents necessary to live in the host country. For example, American seminarians at the Pontifical North American College must have an Italian visa, despite both living and studying in extraterritorial properties of the Holy See.
Area of Santa Maria di Galeria, where the antennae of Vatican Radio are located. The area was ceded by Italy to the Holy See in an agreement in 1951.[3]
The Fundamental Accord, signed in 1993, grants property rights and tax exemptions to the Holy See over various Christian holy sites in Israel, but the agreement was never finalized because of diplomatic problems between the Vatican and Israeli governments.