This artwork by German team Labor Fou is about friendship between people from different cities.The motto of this drawing is "Build bridges, not walls". The grey color palette is pierced by bright subway wagons, spray paint can characters, and big white letters: BUILD BRIDGES NOT WALLS. Subway cars symbolically linked the places artists have created in, namely Berlin, Cologne, Dusseldorf, and Yekaterinburg. During the painting process artists made friends with a local boy named Dima, and added his name to the mural. Dima wrote his name in Russian on a piece of paper, and Labour Fou transferred it to the wall.