In this photo taken on Feb. 6, 2012, people watch the sun set and take pictures from Arpoador beach in Rio de Janeiro, Brazil. Rio is a city of contrasts, where vastly different worlds rub shoulders, and the unexpected lies lurking around every corner.  (AP Photo/Felipe Dana)

Gallery: Sights of Rio

A look at the sights of Rio de Janerio, the host city for the 2016 Summer Games.