16 graffiti artists collaborated to bring this art in prison project to life. Their massive mural expands across 4,500 meters and covers the walls of a Swiss prison -- from exercise yards and hallways to stairwells and the prison's exterior facade.
This large piece of prison art is colorful and lets inmates experience whimsical imagery. The goal for the artwork was to exceed the personal boundaries of each artist, while also altering the atmosphere of the prison.
The large blank walls acted as a virgin canvas that was waiting to be utilized. The stunning outcome of the art has been published in a book format for consumers to purchase. The book is titled '4661m2: Art in Prison.' The book was an afterthought of the artists, but they hope that the inspiring imagery will encourage similar projects to unfold around the globe.