Photo taken on September 24, 2020 shows a scenic spot in Wudalianchi ( “Five Connected Pools”) Volcanic Geological Relics in Heihe city. Wudalianchi volcano, covering an area of about 500 square kilometers, is one of the youngest volcanic fields on the mainland of Asia. The area has been declared a UNESCO World Heritage Location. (People’s Daily Online/Xian Jiangnan)