Brasília (Portuguese pronunciation: [bɾaˈziliɐ]) is the capital city of Brazil. The name is commonly spelled Brasilia in English. The city and its District are located in the Central-West region of the country, along a plateau known as Planalto Central. It has a population of about 2,557,000 (3,599,000 in the metropolitan area) as of the 2008 IBGE estimate, making it the fourth largest city in Brazil. However, as a metropolitan area, it ranks lower at sixth. It is listed as a World Heritage Site UNESCO. Brasília hosts 124 foreign embassies.[1]

As the national capital, Brasília is the seat of all three branches of the Brazilian government. The city also hosts the headquarters of many Brazilian companies. Planning policies such as the location of residential buildings around expansive urban areas, as well as building the city around large avenues and dividing it into sectors, have sparked a debate and reflection on life in big cities in the 20th century. The city's design divides it into numbered blocks as well as sectors for specified activities, such as the Hotel Sector, the Banking Sector or the Embassy Sector.

Reference: http://en.wikipedia.org/wiki/Bras%C3%ADlia,_Brazil