The São Paulo Metro is a rapid transit system serving the city of São Paulo, Brazil. It is one of the largest and most efficient metro systems in the world, featuring over 100 kilometers of track and multiple lines that connect various neighborhoods and suburbs. The metro operates daily, providing a reliable mode of transportation for millions of passengers. Opened in 1974, the São Paulo Metro has expanded significantly over the years, with plans for further extensions. It is known for its cleanliness, safety, and punctuality, making it a popular choice for commuters and tourists alike.