As Brazil prepares to host the Fifa World Cup this summer and the Olympic Games in 2016, imagine... explores the cultural and social history of the city of Rio de Janeiro, home to more than six million Carioca.A city of extremes, Rio is still seen by many as a tropical paradise, but it is also a city divided by class, ravaged by poverty and gun crime. With its roots and rhythms in samba, the music of Rio has directly influenced decades of social and cultural change.imagine... journeys through an extraordinary city, illustrated and narrated by the music and voices of this Brazilian metropolis.