Argentina is the second largest country in South America, constituted as a federation of 23 provinces and an autonomous city, Buenos Aires. It is the eighth-largest country in the world by land area and the largest among Spanish-speaking nations, though Mexico, Colombia and Spain are more populous. Argentina's continental area is between the Andes mountain range in the west and the Atlantic Ocean in the east. Argentina is a founding member of both the United Nations, Mercosur and the Union of South American Nations. Argentina is one of the G-20 major economies. (source)
Buenos Aires is the capital and largest city of Argentina, and the second-largest metropolitan area in South America, after São Paulo. The city of Buenos Aires is not a part of the Buenos Aires Province, nor is it its capital; rather, it is an autonomous district. In 1880, after decades of political infighting, Buenos Aires was federalized and removed from Buenos Aires Province. Buenos Aires is considered an Alpha World City as listed by the Loughborough University group's (GaWC) 2008 inventory. People from Buenos Aires are referred to as porteños (people of the port). (source)
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