Wall drilling illusion Source/credit: Wahajube What am I looking at? This wall drilling illusion is very hard to understand: The shadow below the drilled block is not from that block, but instead from something outside the frame, further in the background. The block being drilled is right above the man drilling it. More optical illusions:Shadow catCrowIn Search for WaterEnormous cat nappingBald friendsCanoe in the WinterGiant CatEyes of the Amazon
