Compléter Rio de JaneiroVersion en ligne An activity to learn vocabulary related to carnivals par Andres Rodriguez 1 city biggest floats competition streets parades famous Sambadrome samba ticket costumes Rio de Janeiro The carnival in Rio de Janeiro , Brazil , is considered the in the world , with around two million people celebrating on the each day . Rio Carnival is for its music and for the amazing and floats . In 1984 , the government decided to give the carnival a special stadium , called the , where people could buy tickets to go and see the . However , there are still plenty of street parties and parades happening all over the . The parades are a kind of and the samba ? schools ? , or groups , are judged on their costumes , dancing , and music . Some samba schools spend millions of dollars on their preparations , but it is estimated that carnival makes over $40 million from sales and advertising .