Today, we will learn and practice curved lines in sewing ... See, I'm-- Peggy: You got it. Zip, zip, zip, zally, to the end. I can't wait to show everybody. It's gonna be wonderful.

These thin lines divide the block into several tiny boxes. Ms Coons asked her Twitter followers to “find the curved line”. Warning: the task is tricky. A passing glance shows all the lines to ...

Which proves, the lines are actually ALL straight. For more optical illusions, Can YOU find the curved lines in this mind-bending optical illusion? It will drive you round the bend Why not try out ...

However, if you look closer, you'll notice some of the lines seem to curve before returning to looking straight. Viewers are challenged to point out the curved lines in the image, a task that is ...