If it fits… Source/credit: 花憐 What am I looking at? This physical optical illusion is caused by a reflection. The cat is sitting on the left side of the glass door, while the box is placed on the right side of the door. The reflection perfectly places the cat in the box. More optical illusions:Scale Model of a CourtyardA Festival for AntsToe socks?Fight against Cervical CancerFreak of NatureImpaled windshieldCat with a HoleFloor Color Creates Extra Dimension