The Vatican is the seat of the Pope. This is the world’s tiniest autonomous country. Despite the fact that it is less than a square mile in size. The Vatican is dedicated to the memory and tomb of St. Peter, the first Pope. The Piazza San Pietro is built on the foundations of a Roman racecourse. Except for St. Peter’s Square to the southeast, it is surrounded by medieval and Renaissance walls (Piazza San Pietro)https://vaticanprivatetours.com