Performers stage a song and dance show as one of the summer night time performances at the Beijing World Park in Beijing, capital of China, Aug. 9, 2019. A series of summer night time events and performances are held here from June 28 to Oct. 7 to give visitors a fantastic audio-visual experience. (Xinhua/Ren Chao)

Molten iron is sprayed to simulate the display of fireworks as one of the summer night time performances at the Beijing World Park in Beijing, capital of China, Aug. 9, 2019. A series of summer night time events and performances are held here from June 28 to Oct. 7 to give visitors a fantastic audio-visual experience. (Xinhua/Ren Chao)