Vatican City, officially the Vatican City State, is a sovereign city-state located within Rome, Italy. It is the smallest country in the world by both area and population. With an area of approximately 110 acres and a population of around 800 people, it is an independent state ruled by the Pope, who is the head of the Catholic Church. The city-state is home to numerous iconic landmarks, including St. Peter's Basilica, the Sistine Chapel, and the Vatican Museums. Vatican City is a major center of religious and cultural significance, attracting millions of visitors each year.