In life, without fail, there are ups and downs. Still, there is nothing predictable about this undulating new bridge in Changsha, China, the capital of Hunan Province. Designed by NEXT Architects , the 600-foot-long pedestrian walkway features ribbonlike paths that rise and fall, weaving in and out of one another while crossing the Dragon King Harbour River. The structure’s braided form nods not only to the twisting loops of a Möbius strip but also to the Chinese decorative art of knotting—the latter reference earning the bridge its name, Lucky Knot. As an additional auspicious gesture, the bridge was finished in bright red, a Chinese symbol of good fortune. Certainly we’re all hoping for some luck on the eve of America’s historic presidential inauguration. Uncertain times, of course, call for daring gestures.