Belo Horizonte is the sixth-largest city in Brazil, with a population of around 2.3 million, and the third largest metropolitan area, with a population of 6 million. It is the 13th-largest city in South America and the 18th-largest in the Americas. The metropolis is anchor to the Belo Horizonte metropolitan area, ranked as the third most populous metropolitan area in Brazil and the 17th most populous in the Americas. Belo Horizonte is the capital of the state of Minas Gerais, Brazil's second-most populous state. It is the first planned modern city in Brazil.