Italy, officially the Italian Republic, is a country in Southern and Western Europe. It is located on a peninsula that extends into the middle of the Mediterranean Sea, with the Alps on its northern land border, as well as several islands, notably Sicily and Sardinia. Italy shares its borders with France, Switzerland, Austria, Slovenia and two enclaves: Vatican City and San Marino. Its territory also includes Campione and the Pelagie Islands. It is the tenth-largest country by land area in the European continent, covering an area of 301,340 km2 (116,350 sq mi), and the third-most populous member state of the European Union, with a population of nearly 60 million. Its capital and largest city is Rome; other major urban areas include Milan, Lombardy, Naples, Turin, Florence, and Venice.

The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant in West Asia. The Mediterranean has played a central role in the history of Western civilization. Geological evidence indicates that around 5.9 million years ago the Mediterranean was cut off from the Atlantic and was partly or completely desiccated over a period of some 600,000 years during the Messinian salinity crisis before being refilled by the Zanclean flood about 5.3 million years ago.