Which top-ten country by total area has Buenos Aires as its capital?

Argentina is the top-ten country by total area whose capital is Buenos Aires.

Argentina covers about 2.78 million square kilometres, making it the eighth-largest country in the world in Wikipedia’s area ranking and the second-largest in South America after Brazil. Buenos Aires sits on the western shore of the Río de la Plata and serves as the country’s capital and largest city.

The city became the federal capital in 1880, after Buenos Aires was separated from Buenos Aires Province and placed under national control. A 1994 constitutional reform later granted the city autonomy; its formal name is now the Autonomous City of Buenos Aires.

The main trap is confusing the city with Buenos Aires Province. Buenos Aires city is Argentina’s national capital, while the province is a separate federal subdivision whose capital is La Plata. Argentina is also sometimes overlooked because Kazakhstan, India, and Brazil rank higher by area but have different capitals.