Photo taken on Nov. 23, 2018 shows a Tulou complex in Zhangzhou City, southeast China's Fujian Province. Fujian Tulou, which dates back to Song and Yuan dynasties, is a type of Chinese rural dwellings of the Hakka people in the mountainous areas in Fujian Province. The layout of Fujian Tulou followed the Chinese dwelling tradition of "closed outside, open inside" concept: an enclosure wall with living quarters around the peripheral and a common courtyard at the center. In 2008, Tulou was added to the World Heritage List as a cultural site. (Xinhua/Lin Shanchuan)