Brasilia's urbanized area, which includes the central business district, residential neighborhoods, and commercial zones, covers around 400 square kilometers (154 square miles). The city is divided into several administrative regions, each with its own unique features and characteristics.
The Federal District of Brazil also encompasses rural areas, including protected ecological zones, agricultural lands, and natural reserves, which contribute to its overall size.
It's worth noting that Brasilia is known for its distinctive urban planning, with its monumental government buildings, wide boulevards, and large green areas, all of which contribute to the city's overall spatial layout.