Quirinal Palace

The Quirinal Palace (known in Italian as the Palazzo del Quirinale or simply Quirinale) is a historical building in Rome, Italy. It is the official residence of the President of the Italian Republic. 
The palace is on the Quirinal Hill, the tallest of the seven hills of Rome. It housed thirty popes, four kings and eleven presidents of the Italian Republic.
History.
The current site of the palace has been in use since Roman times. The Quirinal is the highest hill in Rome.
The palace, on the "Via del Quirinale" and facing onto the "Piazza del Quirinale", was built beginning in 1573 by Pope Gregory XIII 
Pope Paul V commissioned the completion of the work on the main building of the palace.
The palace was a papal residence until 1870.
In 1871, the palace became the official royal residence of the Kings of Italy.
In 1946, the palace became the official residence and workplace for the Presidents of the Italian Republic.