" Rome is unique"

Rome City Italy
Rome is unique in having a sovereign state located entirely within its city limits, the Vatican City. The Vatican is a enclave of Rome and a sovereign possession of the Holy See, the supreme government of the Roman Catholic Church. Rome hosts foreign embassies to both Italy and the Holy See, although frequently the same ambassador is accredited to both.

Another body, the Sovereign Military Order of Malta (SMOM), took refuge in Rome in 1834 after having lost Malta to Napoleon. It is sometimes classified as having sovereignty but does not claim any territory in Rome or anywhere else, hence leading to dispute over its actual sovereign status.

Rome City Italy is also the seat of international organisations of the United Nations, such as the World Food Programme (WFP), the Food and Agriculture Organization (FAO), and the International Fund for Agricultural Development (IFAD).

Rome has traditionally been involved in the process of European political integration. In 1957, the city hosted the signing of the Treaty of Rome, which established the European Economic Community (predecessor to the European Union), and also played host to the official signing of the proposed European Constitution in July 2004.

Rome italy is the seat of the NATO Defence College and is the place where the Statute of the International Criminal Court was formulated.