São Paulo

São Paulo was originally known as the Piratininga plains and was inhabited by the Tupi people.

The Tietê River, once a source of fresh water for São Paulo, became heavily polluted due to industrial effluents.

São Paulo is considered the most multicultural city in Brazil, with a significant Italian community.

In 2010, São Paulo had 62 municipal and state parks, including the Cantareira State Park, which is part of a UNESCO World Heritage Site.

São Paulo's population surpassed that of Rio de Janeiro by 1960, making it Brazil's most populous city.