The world's smallest independent state, Vatican City is the spiritual and administrative center of the Roman Catholic Church. This walled enclave within Rome houses some of the world's most iconic art and architecture, including St. Peter's Basilica, the Sistine Chapel, and the Vatican Museums.
Vatican City is the world's smallest independent state, emerging as a sovereign entity through the Lateran Treaty of 1929 between the Holy See and Mussolini's Italy. The site has been central to Christianity since the martyrdom of Saint Peter in 64 AD and the construction of the first basilica by Emperor Constantine in 326 AD. For over a millennium, it served as the seat of papal power, commissioning the greatest artists of the Renaissance including Michelangelo, Raphael, and Bramante. Today Vatican City preserves one of the world's greatest concentrations of art, architecture, and religious heritage.