Rome, is the capital of Italy and the country's largest and most populous city, with over 2.7 million residents in a municipality of some 1,285.3 km2 (496.3 sq mi), while the population of the urban area is estimated by Eurostat to be 3.46 million. The metropolitan area of Rome is estimated by OECD to have a population of 3.7 million. It is located in the central-western portion of the Italian Peninsula, on the Tiber river.Rome's history as a city spans over two and a half thousand years, as one of the founding cities of Western Civilization. It was the centre of the Roman Empire, which dominated Europe, North Africa and the Middle East for over four hundred years from the 1st Century BC until the 4th Century AD.

Rome has a significant place in Christianity and is the present day home of the Roman Catholic Church and the site of the Vatican City, an independent city-state run by the Catholic Church.

The original language of Rome was Latin, which evolved during the Middle Ages into Italian. The latter emerged as the confluence of various regional dialects, among which the Tuscan dialect predominated, but the population of Rome also developed its own dialect, the Romanesco. The ancient romanesco, used during the Middle Ages, was a southern Italian dialect, very close to the Neapolitan. The influence of the Florentine culture during the renaissance, and, above all, the immigration to Rome of many Florentines, amongst them the two Medici Popes (Leo X and Clement VII) and their suite, caused a major shift in the dialect, which began to resemble more the Tuscan varieties (the immigration of Florentines was mainly due to the Sack of Rome in 1527 and the subsequent demographic decrease). This remained largely confined to Rome until the 19th century, but then expanded to other zones of Lazio (Civitavecchia, Latina), from the beginning of the 20th century, thanks to the rising population of Rome and to better transportation systems. As a consequence, Romanesco abandoned its traditional forms to mutate into the dialect spoken within the city, which is more like standard Italian, although it remains distinct from the other Romanesco-influenced local dialects of Lazio. Dialectal literature in the traditional form Romanesco includes the works of such authors as Giuseppe Gioachino Belli, Trilussa, and Cesare Pascarella. Contemporary Romanesco is mainly represented by popular actors such as Aldo Fabrizi, Alberto Sordi, Nino Manfredi, Anna Magnani, Gigi Proietti, Enrico Montesano, and Carlo Verdone.

Rome is an important centre for music. It hosts the Accademia Nazionale di Santa Cecilia (founded in 1585), for which new concert halls have been built in the new Parco della Musica, one of the largest musical venues in the world. Rome also has an opera house, the Teatro dell'Opera di Roma, as well as several minor musical institutions. The city also played host to the Eurovision Song Contest in 1991 and the MTV Europe Music Awards in 2004.