Some examples of street art in Brazil, a form of artistic expression which can be found in all corners of Brazil's urban environments. Graffiti is promoted by many cultural activist groups, schools, and individual artists, and is a means of promoting the revitalisation of neighbourhoods and community activism among other goals. Two of these examples can be found on the Rua Siqueira Campos in Rio de Janeiro: the others are the work produced in 2011 by São Paulo's Encontro Niggaz de Graffiti during ther annual festival, which takes place every year in the city's south zone.