Royal treasures from the Qing palace's Hall of Mental Cultivation are exhibited at the Shandong Museum, in Jinan city, East China's Shandong province on July 3, 2018. [Photo/sdmuseum.com] 

Visitors gather to hear the museum tour guide at the Shandong Museum, in Jinan city, East China's Shandong province on July 3, 2018. [Photo/dzwww.com] 

As the summer vacation starts, the exhibition attracts many schoolchildren at the Shandong Museum in Jinan, Shandong province, July 3. [Photo/dzwww.com]