The Daijiahu lake park is seen in Qingshan District of Wuhan, central China's Hubei Province, June 16, 2017. In the 1950s, the lake was filled by the fly ash from a nearby power plant. Then it was used as a landfill site in the 1990s. Since 2015, the renovated Daijiahu lake and its surrounding space, which covers an area of about 500,000 squre meters, was opened to the public as a park. (Xinhua/Wang Jianhua)