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RIO DE JANEIRO, BRAZIL (CNN) -- Just a few days are left in Brazil's biggest and flashiest Carnival celebration.

About one-million people party in Rio de Janeiro during the four-day festival.

The highlight of the festival is the Samba Parade, where schools will compete in full costume. Some of those schools have as many as 5,000 members participating in the parade.

Along with the Samba are hundreds of blocos, or street parties all over the city.

The festival is a huge financial boost for Rio de Janeiro; city officials expect it to generate roughly $665 million for the local economy.