An aerial view of one of Sao Paulo's biggest slums, Favela Morumbi, bordering with one of the city's riches neighborhoods, also by the name of Morumbi, is seen January 17, 2004. Sao Paulo, a city that turns 450 Sunday January 25, has some 1.1 million people dwelling in 2,018 officially designated favelas." Another 400,000 live in 1,648 tenements. (KEYSTONE/AP Photo/Alexandre Meneghini)