Lapatilla
A student walks in the Commune 4, Moravia shantytown in Medellin, Antioquia department, Colombia on April 9, 2014. Moravia –which in 30 years accumulated tons of waste creating a mountain of garbage 45 feet high — was converted into a city park, within the framework of a self-sustaining project called “Moravia, Flowers for the Life” presented during the World Urban Forum 7. AFP PHOTO/Raul ARBOLEDA