An exhibition of relics from the Hall of Mental Cultivation (Yangxin dian) at Beijing's Palace Museum takes place in Jinan City, the capital of East China's Shandong Province, July 3, 2018. The exhibition is made up of some 240 relics including jade, enamel and painting works. (Photo: China News Service/Zhang Yong)

An exhibition of relics from the Hall of Mental Cultivation (Yangxin dian) at Beijing's Palace Museum takes place in Jinan City, the capital of East China's Shandong Province, July 3, 2018. The exhibition is made up of some 240 relics including jade, enamel and painting works. (Photo: China News Service/Zhang Yong)

A life-size replica of the Hall of Mental Cultivation (Yangxin dian) at Beijing's Palace Museum has been created for an exhibition in Jinan City, the capital of East China's Shandong Province, July 3, 2018. The exhibition is made up of some 240 relics including jade, enamel and painting works. (Photo: China News Service/Zhang Yong)

An exhibition of relics from the Hall of Mental Cultivation (Yangxin dian) at Beijing's Palace Museum takes place in Jinan City, the capital of East China's Shandong Province, July 3, 2018. The exhibition is made up of some 240 relics including jade, enamel and painting works. (Photo: China News Service/Zhang Yong)

An exhibition of relics from the Hall of Mental Cultivation (Yangxin dian) at Beijing's Palace Museum takes place in Jinan City, the capital of East China's Shandong Province, July 3, 2018. The exhibition is made up of some 240 relics including jade, enamel and painting works. (Photo: China News Service/Zhang Yong)

An exhibition of relics from the Hall of Mental Cultivation (Yangxin dian) at Beijing's Palace Museum takes place in Jinan City, the capital of East China's Shandong Province, July 3, 2018. The exhibition is made up of some 240 relics including jade, enamel and painting works. (Photo: China News Service/Zhang Yong)