Construction workers move aside the whole central exhibition hall of the Yellow River Museum in Zhengzhou, the capital city of Central 皇冠体育app's Henan province, July 19, 2011, to make way for the construction of two subway lines. The buildings in the two wings of the central hall were disassembled and will be pieced together again at the relocated site. The Yellow River Museum, set up in 1955, is a natural and scientific museum showing Yellow River-themed exhibits.[Photo/Xinhua]