Sometimes, a small change in perspective can be the difference between a normal picture and an optical illusion.  It makes you wonder how many times UFOs, cryptids, and other mystical events have been misinterpreted simply because the viewer’s point of view might be slightly askew.

Here are 11 examples of real-life optical illusions – some deliberate, some not.  Click on one of the images below to see it in full size.

Source:  Odd Stuff Magazine