By Chesney Hearst, Senior Contributing Reporter
RIO DE JANEIRO, BRAZIL – As the city's biggest celebration, Rio de Janeiro's Carnival attracts millions of visitors and spectators every year and the competitive samba school parades that take place in Sambódromo are one of the largest and most internationally recognized parts of the annual pre-Lenten celebrations.
Designed by famous Brazilian architect Oscar Niemeyer, the Sambódromo, also known as the Marquês da Sapucaí, was built in 1984 and . . .