Art and science often came together in the works of Dutch artist M.C. Escher, known for his prints and woodcuts of "impossible constructions," such as the famous stairway illusion in "Relativity."

The ants in this drawing march around a Mobius strip, the one-sided surface discovered in 1858. More than just an illusion, the shape has practical uses, too: a Mobius strip-shaped conveyor belt lasts longer than a normal one because each part of it gets equal wear.