Me in St. Peter's Square, Vatican City Sightseeing in Italy picture - Technically, Vatican City is a sovereign city-state within Rome. At just 0.2 square miles only 70 percent of the size of the National Mall in Washington, D.C. Vatican City is the world's smallest independent state. Located on a low hill and entirely surrounded by the city of Rome, the Vatican has the smallest population of any country in the world.
Technically, Vatican City is a sovereign city-state within Rome. At just 0.2 square miles only 70 percent of the size of the National Mall in Washington, D.C. Vatican City is the world's smallest independent state. Located on a low hill and entirely surrounded by the city of Rome, the Vatican has the smallest population of any country in the world.