Are these two men just wearing the same clothing, or is something far more insidiuous at play? Rather than saying this is a glitch with the camera, it's much more fun to suggest an error in the very fabric of existence. Yeah, we'll go with that.
15. Purple Corruption
The trees up ahead appear to transition from normal, boring green and brown to a far more striking purple colour. It looks a bit like a piece of infra-red photography has seeped into the image, or a chemical tanker has had a devastating accident.
