10 Optical Illusions That Will Warp Your Mind And Make Your Spine Tingle

Whoa there.

We all love a good optical illusion.

YouTuber Matthew Santoro loves them so much, he decided to make a video highlighting 10 completely mind-bending illusions that will get you through the day.

We really happen to love No. 9. What's your favorite? 

Watch the video below and share in the comments!