One viral optical illusion challenges viewers to find a hidden horse within a complex landscape, with a catch: you only have ...

Track photographer Robert K. Yosay had a hard time believing his eyes when he saw the final image where an illusion made it appear that there was only one horse, with multiple legs, at the finish.

Optical illusion personality tests use images that can be interpreted in various ways to reveal one's personality traits.

Spotting the horse suggests strong critical thinking skills. These tests are fun but offer generic, not always accurate, results. Photo: Bright Side/ YouTube Optical illusion personality test are ...