Revelers of all ages flood the streets of downtown Rio de Janeiro to celebrate pre-Carnival with music, dance, and vibrant costumes, just one week before the iconic Rio Carnival. "This is our poetic day—to live, dream, and believe that life is worth it," says reveler Julio Barroso during 'Cordao do Boitata,' one of Rio's most popular 'blocos' (carnival street parade). IMAGES AND SOUNDBITES