optical illusions Can you see the car in this photo? It's right in front of you Carla Sinclair

playing with your food Learn About "Fork-and-Knife Illusion" From A New Scientific Paper Written By A Middle-schooler Thom Dunn

mirages Astonishing photos of huge ships mysteriously floating in the air above UK seas David Pescovitz

roads Optical illusion has drivers concerned that new bridge support is leaning dangerously David Pescovitz

superior images Man 'stunned' to see a ship floating in the air while on a stroll Carla Sinclair

stereograms Trippy new experiments in "Magic Eye"-style autostereograms David Pescovitz

optical illusions Is there a seed in this avocado? David Pescovitz

curvature blindness Optical Illusion: What do you see, zigzags or curves? Carla Sinclair

graph paper FTW How to draw a 3D cube illusion on graph paper Clive Thompson

Reality Hacking More on the Ames window illusion Gareth Branwyn

the brain Interactive site showing how 141 optical illusions work Clive Thompson

optical illusions Are these circles moving? Mark Frauenfelder

optical illusion These columns are straight (and not moving) Andrea James

chair How to make an impossible two-legged chair Andrea James

cognition This image will disappear if you stare at it long enough Andrea James

faces Computer finds faces in grains of sand David Pescovitz

vision Watch this cool demonstration of an Ames window Andrea James

optical illusions If you rotate this photo of a spaceship, it looks like a car in the water Mark Frauenfelder

motion These boxes aren't rotating. It's an optical illusion. Really. David Pescovitz