The government of Vatican City has a unique structure. The Pope is the sovereign of the state. Legislative authority is vested in the Pontifical Commission for Vatican City State, a body of cardinals appointed by the Pope for five-year periods.
Vatican City 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 just over 800.