Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. 1 day ago · Argentina, country of South America, covering most of the southern portion of the continent. The world’s eighth largest country, Argentina occupies an area more extensive than Mexico and the U.S. state of Texas combined. Dec 10, 2025 · Visit the Definitions and Notes page to view a description of each topic. Plan your trip to Argentina with our travel inspiration and tips covering top attractions, when to visit and expert advice to help you make the most of your adventure. Argentina is a federal presidential representative democratic republic with a multi-party system and an independent judicial system. The country's constitution provides for the usual three powers of government: the executive, the legislative and the judicial. 2 days ago · Argentina is South America's second-largest country, after Brazil, in land area and population. It occupies most of the continent's southern region between the Andes Mountains and the Atlantic Ocean. Considered one of the countries that offers the greatest diversity worldwide, many of its natural sites are protected as natural reserves and national parks and have even been recognized as World Heritage Sites by the UNESCO. Argentina is bordered by Bolivia, Brazil, Uruguay, Paraguay and Chile.