Vatican City officially Vatican City State or State of Vatican City is an independent state located within the city of Rome. With an area of 44 hectares (110 acres), and a population of about 1,000, it is the smallest state in the world by both area and population.
It is an ecclesiastical or sacerdotal-monarchical state (a type of theocracy) ruled by the Pope which is, religiously speaking, the Bishop of Rome and head of the Roman Catholic Church. The highest state functionaries are all Catholic clergy of various national origins. Since the return of the popes from Avignon in 1377, they have generally resided at the Apostolic Palace within what is now Vatican City, although at times residing instead in the Quirinal Palace in Rome or elsewhere.
Within Vatican City are religious and cultural sites such as St. Peter's Basilica, the Sistine Chapel and the Vatican Museums. They feature some of the world's most famous paintings and sculptures. The unique economy of Vatican City is supported financially by the sale of postage stamps and tourist mementos, fees for admission to museums, and the sale of publications.
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