These young musicians hail from a village in Paraguay called Cateura, a town perched on top of a mountain of garbage. Every day 1,500 tons of solid waste is dumped in a landfill in Cateura, where 2,500 families live. These families, with the help of their children, survive by recycling whatever they can find in the landfill. This video of slum children creating music with instruments made of trash has been reposted nearly 345,000 times on Facebook in the past week. Some viewers said they wept when they heard the rich, deep notes from a cello made of rusty oil can.