Milan is a city in Italy and the capital of the region of Lombardy and of the province of Milan. The city proper has a population of about 1,315,000, while the urban area is the largest in Italy and the fifth largest in the European Union with a population of 4,345,000 over an area of 2,370 km2 (915 sq mi). The Milan metropolitan area, by far the largest in Italy, is estimated by the OECD to have a population of 7,400,000.
The city is the main industrial, commercial, and financial centre of Italy and a leading global city of fashion and design. Its business district hosts the Borsa Italiana (Italy's main stock exchange) and the headquarters of the largest national banks and companies. Milan's museums, theatres and landmarks (including the Milan Cathedral, the fifth-largest cathedral in the world, and Santa Maria delle Grazie, decorated with Leonardo da Vinci paintings such as The Last Supper, a UNESCO World Heritage Site) attract over 8 million visitors annually.