The Quirinal Palace (known in Italian as the Palazzo del Quirinale or simply Quirinale) is an historic building in Rome, Italy, the current official residence of the President of the Italian Republic. It is located on the Quirinal Hill, the highest of the seven hills of Rome. It has housed thirty popes, four kings and eleven presidents of the Italian Republic. The palace extends for an area of 110,500 square metres and is the largest residence in the world.