standing, with the most in the towns of Shuikou (), Tangkou (), Baihe (), Chikan (), and Xiangang (), in that order (see map in article by Batto). In the late 19th and early 20th century, Kaiping was a region of major emigration abroad, and a melting pot of ideas and trends brought back by overseas Chinese, Huaqiao, made good. As a consequence, many watchtowers incorporated architectural features from China and the West. These were examples of the Qiaoxiang () architecture. The diaolou were built by villagers during a time of chaos and served two purposes: housing and protecting against forays by bandits. In 2007, the Kaiping diaolou and villages were added to the list of UNESCO World Heritage Sites and consist of four separate restored village areas: Zilicun village () in Tangkou, Sanmenli village () in Chikan, Jinjiangli village () in Xiangang, and Majianglong village cluster () in Baihe township. The Kaiping diaolou was the location for parts of the filming of 2010 movie Let the Bullets Fly (). Examples of diaolous include: Yinglonglou (), oldest extant diaolou in Kaiping, in the village of Sanmenli (Chikan township) built by the Guan () lineage during the Jiajing era of the Ming dynasty (1522-1566), is a massive three-storey fortress with one-meter thick walls, in contrast with the high tower diaolou built much later with the aid of Huaqiao. Jinjiangli Diaolou Cluster (), situated behind Jinjiangli Village (Xiangang Township), includes three exquisite diaolous: Ruishi Lou, Shengfeng Lou, and Jinjiang Lou. Ruishi Diaolou, constructed in 1921, has nine floors and is the tallest diaolou in Kaiping. It features a Byzantine style roof and a Roman dome. The Majianglong diaolou cluster () is spread across five villages (Baihe township) in a bamboo forest: Yong'an and Nan'an Villages of the Huang () family; Hedong, Qinglin, and Longjiang Villages of the Guan () family. Zilicun Diaolou Cluster (), located in Zilicun Village (Tangkou township), includes nine diaolous, the largest number among the four Kaiping villages designated by UNESCO. They feature the fusion of Chinese and various Western architectural styles and rise up surrealistically over the rice paddy fields. Fangshi Denglou - Built in 1920 after contributions from villagers, this denglou is five storeys high. It is referred to as the "Light Tower" because it had an enormous searchlight as bright as the beam of a lighthouse. Li Garden, in Beiyi Xiang, was constructed in 1936 by