A favela is a slum in Brazil within urban areas. In preparation for the 2016 Olympics, Rio de Janeiro bulldozed favelas, or blocked them out of view. Those same communities often appeared as blank spots on Google Maps.
Now Google is putting the city's working class communities back on the map, as billions of people around the world zoom in on Brazil. Google launched a virtual tour of Rio's favelas, showing them in 360-degree video.