in the city of Rio de janiero
Carnival is not celebrated in just one city; it's celebrated in countries all over South America. Wikipedia has all the countries listed and info about the specific carnivals.
one of them is Brazil
here is a site about Carnaval in Brazil...hope this helps! http://www.topics-mag.com/internatl/holidays/brazil/carnival-brazil.htm
Fat Tuesday is celebrated in different countries by having parades and festivities in America, having a pancake breakfast in Canada and having a carnival in Brazil.
Wednesday is the end of the carnival.
Many of the holidays in Portugal are Catholic holidays. There is also Portugal Day on June 10, and Freedom Day on April 25. The wildest of holidays is Carnival which Portugal shared with Brazil. People wear colorful costumes and watch parades with colorful floats.
Carnival Rio
cocacabana
carnival
George Washington
Carnival is the Brazilian equivalent of Mardi Gras.