Carnivals are celebrated in many countries but the one in Brazil is most famous. Different cities of Brazil have their own way of celebrating this week long festival of revelry and fun. However, the most famous carnival is that of Rio De Janeiro. Thousands of people throng the Sambodromo stadium in the city. Often wearing masks and colorful costumes, they dance to the beats of drums and music, Samba being the most prevalent form of dancing here.