A visitor views a dragon jar, which just finished a 15-day cooling down from a seven-day treatment in a kiln at the Jingdezhen Ancient Kilns and Folk Custom Museum, Nov 18, 2014. In the old days, dragon jars were only made for the royal families and each time only one jar was allowed to be made in a kiln. [Photo by Jiang Wanjuan/chinadaily.com.cn]