Optical illusions are photos or images that can't quite be comprehended at first glance by many people. They are interesting images that just so happened to be taken in the right place at the right time by the right person.

There have been many different optical illusions that have taken the internet by storm over the years, one very notable one being "the dress," which still continues to confuse people, but there have been hundreds more to go around.

Some optical illusions are more confusing than others. Some just take a second look to understand them, and others need some serious explaining in order to work it out. All-in-all, they are cool to see, and Reddit's "Confusing Perspective" is a subreddit that allows users to share all of their coolest photos taken from the best yet most concerning points of view.

Here are just 15 of those interesting photos that might leave some people scratching their heads.