São Paulo is the largest city in Brazil, with a city population of about 11 million and almost 20 million in its metropolitan region. It is the capital of the Southeastern state of São Paulo, and also a beehive of activity that offers a jovial nightlife and an intense cultural experience. São Paulo is one of the richest cities in the southern hemisphere, though inequality between the classes typically observed in Brazil is blatant. Historically attractive to immigrants as well as (somewhat later) Brazilians from other states, it's one of the most diverse cities in the world.
Native American Chief Tibirica' and the Spanish Jesuit priests José de Anchieta and Manuel de Nóbrega founded the village of São Paulo de Piratininga on 25 January 1554 -- Feast of the Conversion of Paul the Apostle. Along with their entourage, the priests established a mission named Colégio de São Paulo de Piratininga aimed at converting the Tupi-Guarani Native Brazilians to the Catholic religion. São Paulo's first church was constructed in 1616, and it was located where today the Catedral da Sé is located.
Avenida Paulista (Paulista Avenue) is one of São Paulo's most popular postcards, as it is the pride of Paulistanos. It is one of the largest business centers, and probably the largest cultural region in the city. Its architectural contrast reflects the fact that the avenue is located between the "old" and "new" parts of the city.