Art work comes in all shapes and sizes, but perhaps the most mind blowing in terms of sheer scale and inventiveness are GPS drawings. Using the planet as their canvas, practitioners track their journeys to create huge sketches. Pioneered by artists Hugh Pryor and Jeremy Wood, who have drawn a 13-mile wide fish in Oxfordshire, the most recent addition to the GPS gallery are these fantastic creations by Japanese ad agency Frontage. To promote a personal navigation device, they used bikes and the streets of Tokyo. The result? The fabulous Tokyo Zoo Project.