From lavish palaces to understated abodes, these are the homes of the world's leaders.
On the highest of Rome's seven hills can be found the home of Italy's President Sergio Mattarella, the Quirinal Palace. The palace is located on a spot attributed to several Ancient Roman deities including Quirinus, after whom the hill and palace are named. It was originally built in 1583 as a holiday home for Pope Gregory XIII who sought somewhere to escape the humidity and stench of the Tiber River. It has been home to 30 popes and four Italian kings, and since 1947 has been used as the official residence of the last 12 Italian presidents.