A staff member introduces a folk custom item at the Zhanggezhuang folk custom museum in Zhanggezhuang Town of Yantai City, east China's Shandong Province, June 7, 2018. The Zhanggezhuang folk custom museum, built in 2012, displays for free the local folk custom items such as farming, marriage and daily necessities. (Xinhua/Ren Pengfei)