Vatican City

Vatican City ⁱ/ˈvætɨkən ˈsɪti/, officially Vatican City State (Italian: Stato della Città del Vaticano;^{[note 4]} pronounced [ˈstaːto della t͡ʃitˈta (d)del vatiˈkaːno]), is a landlocked sovereign city-state whose territory consists of a walled enclave within the city of Rome, Italy. It has an area of approximately 44 hectares (110 acres), and a population of around 840.^[1] This makes Vatican City the smallest internationally recognized independent state in the world by both area and population.

More at http://en.wikipedia.org/wiki/Vatican_City