Seoul-based artist duo Kimchi and Chips transforms a pedestrian bridge in Gwanmyeong, Gyeonggi-do province, South Korea, into a dynamic op-art display by adding a kinetic light artwork as a permanent outdoor fixture. Optical Rail features a more than 11-meter-wide band of backlit monochromatic patterns that are distorted by a motorised array of Acrylic lenses. As the array moves across the patterns, the lenses “decode a layer of time stored in static images, rendering a duet between the motion-ful and the motionless.”