The Carnival in Rio de Janeiro is the largest carnival celebration in the world. It takes place every year before Lent and involves elaborate parades by samba schools featuring choreographed dances and costumes. While the main parades occur in the Sambadrome, many locals participate in street festivals across the city, dancing to carnival music. Blocos and bandas are also popular forms of celebration where anyone can join in the dancing and music. The carnival traditions date back to the 18th century and incorporate influences from Africa and other countries.