Photo taken on Dec. 16, 2015 shows the Porcelain Tower at the newly opened Porcelain Tower Heritage Park in Nanjing, capital of east China's Jiangsu Province. The Porcelain Tower of Nanjing, also known as "Bao'en Temple", which means "Temple of Gratitude", was ranked one of the Seven Wonders of the World during medieval times. The tower was first built during the reign of Chinese Emperor Yong Le (1403-1425) in the Ming Dynasty for his mother. But it was completely destroyed during the war between the Qing Imperial Court and the Taiping rebels in 1856. (Photo: Xinhua/Sun Can)