Fotogalleri: Fantastisk karneval i Rio A reveller from the Vila Isabel samba school performs during the first night of Carnival at the Sambadrome in Rio de Janeiro on February 20, 2012. The night parades in Rio's hallowed Sambadrome marked the high point of the pre-Lent bacchanalian Carnival festival, which is bringing this racially diverse country of 191 million people, virtually to a stop. AFP PHOTO / VANDERLEI ALMEIDA Revellers from the Vila Isabel samba school parade on the first night of the annual Carnival parade in Rio de Janeiro's Sambadrome February 20, 2012. REUTERS/Sergio Moraes (BRAZIL - Tags: SOCIETY ENTERTAINMENT) A reveller of the Beija Flor samba school performs at the Sambadrome during the first night of Rio de Janeiro's famed carnival parades on February 20, 2012. The night parades in Rio's hallowed Sambadrome marked the high point of the pre-Lent bacchanalian Carnival festival, which is bringing this racially diverse country of 191 million people, virtually to a stop. AFP PHOTO / VANDERLEI ALMEIDA A reveller of the Beija Flor samba school performs at the Sambadrome during the first night of Rio de Janeiro's famed carnival parades on February 20, 2012. The night parades in Rio's hallowed Sambadrome marked the high point of the pre-Lent bacchanalian Carnival festival, which is bringing this racially diverse country of 191 million people, virtually to a stop. AFP PHOTO / VANDERLEI ALMEIDA