Countryside parks in Tianjin serve as tourism destinations, natural oxygen bars

Aerial photo taken on April 30, 2019 shows the scenery at the Wuqing country park in Tianjin, north China. A dozen countryside parks in Tianjin have been built and renovated in recent years and have begun to serve as both tourism destinations and natural oxygen bars for the people. (Xinhua/Yue Yuewei)