Photo taken on March 27, 2017 shows the overview of the spiral sightseeing platform at the Meixi Lake in Changsha, capital of central China's Hunan Province. Made from 7,000 tonnes of steel, the spiral sightseeing platform is 35 meters high with a diameter of 86 meters. The construction of this sightseeing platform is almost completed and will open to the public after acceptance check. [Photo/Xinhua]