Milan is the city capital of the Lombardy Region in Northern Italy and is the 2nd richest city in the European Union after Paris in 2016. It is the second most populous city in Italy after Rome, with the city proper at 1,369,000, and the Metropolitan City of Milan at 3,219,000. Its geographical outskirt, has a population estimated to be about 5,270,000 in 1,891km2, ranking 2nd in the European Union. The wider Milan metropolitan area, popular for Greater Milan, is a polycentric metropolitan region that comprehends almost every province of Lombardy, the Piedmont province of Novara, and some parts of the province of Piacenza which counts an estimated total population of 8,123,020.Milan is Italy's main industrial and financial capital and corporation hub home to thousands of the most important companies worldwide. In terms of GDP, it has the largest economy among European non-capital cities. Milan is considered part of the Blue Banana and has now become the wealthiest city among the economic rivalry "Four Motors for Europe."