Relics are on display at a Silk Road themed show in Gansu Provincial Museum in Lanzhou City, capital of Northwest China’s Gansu Province, May 11, 2017. The museum is presenting 420 historical and cultural relics related to the ancient trade route, including painted pottery, bronze ware, jade, gold and silver articles, and stone sculptures, collected from 28 regional museums in the province. (Photo: China News Service/Yang Yanmin)

Relics are on display at a Silk Road themed show in Gansu Provincial Museum in Lanzhou City, capital of Northwest China’s Gansu Province, May 11, 2017. The museum is presenting 420 historical and cultural relics related to the ancient trade route, including painted pottery, bronze ware, jade, gold and silver articles, and stone sculptures, collected from 28 regional museums in the province. (Photo: China News Service/Yang Yanmin)

Relics are on display at a Silk Road themed show in Gansu Provincial Museum in Lanzhou City, capital of Northwest China’s Gansu Province, May 11, 2017. The museum is presenting 420 historical and cultural relics related to the ancient trade route, including painted pottery, bronze ware, jade, gold and silver articles, and stone sculptures, collected from 28 regional museums in the province. (Photo: China News Service/Yang Yanmin)

Relics are on display at a Silk Road themed show in Gansu Provincial Museum in Lanzhou City, capital of Northwest China’s Gansu Province, May 11, 2017. The museum is presenting 420 historical and cultural relics related to the ancient trade route, including painted pottery, bronze ware, jade, gold and silver articles, and stone sculptures, collected from 28 regional museums in the province. (Photo: China News Service/Yang Yanmin)

Relics are on display at a Silk Road themed show in Gansu Provincial Museum in Lanzhou City, capital of Northwest China’s Gansu Province, May 11, 2017. The museum is presenting 420 historical and cultural relics related to the ancient trade route, including painted pottery, bronze ware, jade, gold and silver articles, and stone sculptures, collected from 28 regional museums in the province. (Photo: China News Service/Yang Yanmin)

Relics are on display at a Silk Road themed show in Gansu Provincial Museum in Lanzhou City, capital of Northwest China’s Gansu Province, May 11, 2017. The museum is presenting 420 historical and cultural relics related to the ancient trade route, including painted pottery, bronze ware, jade, gold and silver articles, and stone sculptures, collected from 28 regional museums in the province. (Photo: China News Service/Yang Yanmin)