Leuven is a reasonably densely populated city, especially in the student housing section. This piece of street art adds to that feeling, as the graffiti appears as though dozens of tiny people are living near the staircase of a student flat. The art was created as part of the 2013 Concrete Festival, where several locations prone to graffiti were turned into art installations in collaboration with the university and youth center. The entrance to the Camilo Torres student flat was one such place— transformed into a sprawling metropolis full of tiny…