If you mean Rio Carnival its February 13 through February 16.
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.
"Carnival" - celebrated in Rio de Janiero, is not the same festival as "Mardi Gras".
In Rio de Janeiro
in the city of Rio de janiero
Some of the main attractions at the Rio Carnival include the samba parades, the carnival ball, and the massive street parties. For more information about the Rio Carnival you can visit the official Rio Carnival website.
Carnival is celebrated around the world before Lent each year as it leads into Easter.
a carnival
Carnival in Rio - 1954 was released on: USA: 24 April 1954
why is carnival celebrated in Trinidad
The cast of Carnival in Rio - 1954 includes: Art Gilmore as Narrator
The cast of Carnival in Rio - 1983 includes: Ursula Andress as Herself - at Carnival Arnold Schwarzenegger as Himself - Host