Transparent coffee cup Photo by: jkvandersteen What am I looking at? This transparent coffee cup is a perfect physical illusion. The reflection of the saucer in the smooth surface of the cup completes the floral pattern nicely. More optical illusions:Bride kissing a fishGrid Illusion ShirtSeparationMagnus the ImpaledHalf AssedAmish Men using a TruckDog Head MountNature's Dance