Visitors take photos of the exhibits during a special exhibition with a selection of cultural relics dating from the Spring and Autumn Period (770-476 B.C.) to the Qin and Han Dynasty (221 B.C.-220 A.D.) at the Nanjing Museum in Nanjing, east China's Jiangsu Province, May 18, 2020. The special exhibition kicks off on May 18, which marks the International Museum Day. (Photo/China News Service)
Visitors watch the exhibits during a special exhibition with a selection of cultural relics dating from the Spring and Autumn Period (770-476 B.C.) to the Qin and Han Dynasty (221 B.C.-220 A.D.) at the Nanjing Museum in Nanjing, east China's Jiangsu Province, May 18, 2020. The special exhibition kicks off on May 18, which marks the International Museum Day. (Photo/China News Service)
A visitor watches the exhibits during a special exhibition with a selection of cultural relics dating from the Spring and Autumn Period (770-476 B.C.) to the Qin and Han Dynasty (221 B.C.-220 A.D.) at the Nanjing Museum in Nanjing, east China's Jiangsu Province, May 18, 2020. The special exhibition kicks off on May 18, which marks the International Museum Day. (Photo/China News Service)
Visitors watch the exhibits during a special exhibition with a selection of cultural relics dating from the Spring and Autumn Period (770-476 B.C.) to the Qin and Han Dynasty (221 B.C.-220 A.D.) at the Nanjing Museum in Nanjing, east China's Jiangsu Province, May 18, 2020. The special exhibition kicks off on May 18, which marks the International Museum Day. (Photo/China News Service)
Photo taken on May 18, 2020, shows the relics on display during a special exhibition with a selection of cultural relics dating from the Spring and Autumn Period (770-476 B.C.) to the Qin and Han Dynasty (221 B.C.-220 A.D.) at the Nanjing Museum in Nanjing, east China's Jiangsu Province. The special exhibition kicks off on May 18, which marks the International Museum Day. (Photo/China News Service)
Photo taken on May 18, 2020, shows the relics on display during a special exhibition with a selection of cultural relics dating from the Spring and Autumn Period (770-476 B.C.) to the Qin and Han Dynasty (221 B.C.-220 A.D.) at the Nanjing Museum in Nanjing, east China's Jiangsu Province. The special exhibition kicks off on May 18, which marks the International Museum Day. (Photo/China News Service)
People view exhibits at Gansu Provincial Museum during the International Museum Day in Lanzhou, northwest China's Gansu Province, May 18, 2020. Monday marks the International Museum Day. (Photo: China News Service/Gao Zhan)
People view exhibits at Gansu Provincial Museum during the International Museum Day in Lanzhou, northwest China's Gansu Province, May 18, 2020. Monday marks the International Museum Day. (Photo: China News Service/Gao Zhan)
People view exhibits at Gansu Provincial Museum during the International Museum Day in Lanzhou, northwest China's Gansu Province, May 18, 2020. Monday marks the International Museum Day. (Photo: China News Service/Gao Zhan))
People view exhibits at Gansu Provincial Museum during the International Museum Day in Lanzhou, northwest China's Gansu Province, May 18, 2020. Monday marks the International Museum Day. (Photo: China News Service/Gao Zhan)
