Vatican City, one of the holiest sites in Christianity, is a monument to a spiritual endeavour as well as a history spanning over two millennia. The Vatican is inextricably linked to the history of Christianity as the location of the burial of the Apostle Saint Peter, the first in an uninterrupted line of Roman Pontiffs, and a major hub for pilgrimages. It is also a prime example of Baroque and Renaissance art, as well as an ideal work of art. It began to have a lasting impact on the advancement of the arts in the sixteenth century. The Lateran Treaty on February 11, 1929, which established the independent State, grants it territorial power over 44 hectares in the heart of Rome.