This time-lapse video shows the construction of the Jinsha bridge over the course of the year. The bridge, designed for both rail and road traffic, was completed in Yibin, a city in southwest China's Sichuan Province, on Tuesday. The 1,875-meter bridge crosses the Jinsha River at the upper stretches of the Yangtze River, and its main arch spans 336 meters, which is the longest of its kind in the world. Take a look!