Take a look at these mind-blowing Best Illusions of the Year 2018.
Above and in the video the winning Best Illusion of the Year 2018 Contest, presenting a 2D picture that has 3 different perceived structures depending on the viewpoint. Credit Kokichi Sugihara / Illusion of the Year
Triply Ambiguous Object
Movement Illusion with a Twist
The Worm’s Eye View Illusion
source Illusion of the Year