Lima is the biggest city in the world built on a desert, so when you cross the topological frontieres of the city, after the barriadas (peruvian township usually constructed on the mounts of the city) the desert reappear. In the north of the Panamericana road wich cross the wole city...
Paco Chuquiure: OASIS
The inhabitants of "Oasis" have built their life on an abandoned trash heap outside Lima. Ten years ago they simply took over the former dump in what is called an "invasion". This is the euphemism Peruvians use to describe the technically illegal land grab of empty space in many areas...