About 1.9 million people.

Curitiba is a clean, green city in southern Brazil that many people call one of the country's best-planned places. It is famous for its parks, buses, and love of nature.
You can climb the glass Botanical Garden greenhouse, ride the tube-shaped bus stops, and visit a park with wandering peacocks and lakes.
Curitiba has dozens of parks and gardens, giving families lots of green space to play and relax.
The city is known for smart ideas like fast buses and recycling that keep it tidy and friendly.