Commuters wait to board a train during the evening hours at Se metro station in Sao Paulo, Brazil.
Brazilian cities such as Sao Paulo and Rio de Janeiro often seem jam-packed as it is. Just wait until the 2014 World Cup and 2016 Olympic Games, when they will be teeming with sports fans. The country is racing to upgrade infrastructure in time, but doubters abound.
We want to hear your feedback so we can keep improving our website, theworld.org. Please fill out this quick survey and let us know your thoughts (your answers will be anonymous). Thanks for your time!