Photo taken on Sept. 28, 2018 shows the "2018 Light Move Festival" held in Lodz, Poland, Sept. 28, 2018. (Xinhua/Chen Xu)
Photo taken on Sept. 28, 2018 shows the "2018 Light Move Festival" held in Lodz, Poland, Sept. 28, 2018. (Xinhua/Chen Xu)
Photo taken on Sept. 28, 2018 shows the "2018 Light Move Festival" held in Lodz, Poland, Sept. 28, 2018. (Xinhua/Chen Xu)
Photo taken on Sept. 28, 2018 shows the "2018 Light Move Festival" held in Lodz, Poland, Sept. 28, 2018. (Xinhua/Chen Xu)
Photo taken on Sept. 28, 2018 shows the "2018 Light Move Festival" held in Lodz, Poland, Sept. 28, 2018. (Xinhua/Chen Xu)
Photo taken on Sept. 28, 2018 shows the "2018 Light Move Festival" held in Lodz, Poland, Sept. 28, 2018. (Xinhua/Chen Xu)
Photo taken on Sept. 28, 2018 shows the "2018 Light Move Festival" held in Lodz, Poland, Sept. 28, 2018. (Xinhua/Chen Xu)