São Paulo is almost beyond the imagination — a drizzle-shrouded megacity of almost 20 million that sprawls like Los Angeles and boasts enough skyscrapers to vie with New York. The gritty financial engine of the new Brazil, São Paulo exerts influence over commerce, media and culture. The Brazilian writer Roberto Pompeu de Toledo calls it an “urban labyrinth that reaches toward the infinite.” It might not have the palm-fringed glamour of Rio de Janeiro, but in the view of urbane Paulistanos, Brazil has only one truly global city: theirs.