The building of Palazzo del Quirinale (the tenth largest palace in the world) was begun during the reign of Pope Gregory XIII (r. 1572-85), who intended to use it as a summer residence. Work began in 1574 under the architects Flamino Ponzio and Ottaviano Mascherino. The palazzo wasn't completed until the time of Pope Clement XII (r. 1720-40).
The principal entrance, which is surmounted by reclining statues of Peter and Paul, the patron saints of Rome, was created by Carlo Maderno during the reign of Pope Paul V (r. 1605-21).
In 1871, Palazzo del Quirinale became the official residence of Italy's monarch. Since the foundation of the Italian Republic in 1946, it has been the official residence of the president.
Three flags fly over the Palazzo del Quirinale. In addition to the tricolour of Italy and the flag of the European Union (twelve gold stars on a blue background), the third flag represents the President of the Republic. The president's flag is only raised when he (there has yet to be a female holder of the office) is in residence.
The beautiful gardens of the Palazzo del Quirinale extend over 4 hectares (10 acres).
Clock Tower
Entrance
Statues of St Peter and St Paul crown the entrance