[url=http://gizmodo.com/holy-crap-these-four-images-are-actually-just-one-singl-525258272?utm_campaign=socialflow_gizmodo_facebook&utm_source=gizmodo_facebook&utm_medium=socialflow]Source (Gizmodo)[/url] If you stare at it long enough and really concentrate on connecting everything together, you can tell it's a single image. Very tough though.