Brazil is the largest country in South America and the fifth largest on earth, with over 213 million people, 26 states and a Federal District built to hold the capital, Brasília. Its Atlantic coastline runs 7,491 kilometres and it borders every country on the continent except Ecuador and Chile.
Most of the Amazon basin is Brazilian, including the world's largest river system and the most extensive virgin tropical forest left standing; the same country also holds wetlands, savanna, plateau and low mountains. São Paulo is the most populous city and Rio de Janeiro the second. The distance between any two of these is the planning problem.
Checked 2026-08-25