One of the most confusing pictures on the internet is that of a cat on stairs. The feline’s direction is ambiguous, making it ...

The real fascination of the painting is the optical illusion Pozzo ... on the floor it creates a seamless illusion. The fascination with illusionistic ceiling paintings in this period in Europe ...

If you are able to solve this optical illusion challenge, you have the sharpest 8K vision. Finding the spider quickly will also tell if you are quick-witted or a slow thinker.” Why optical ...