The document discusses the ancient town of Hoi An in Vietnam. It is located on the Thu Bon River, 30km south of Da Nang. In the past, Hoi An played an important role as a major trading center in Southeast Asia. Currently, the main attractions of Hoi An are the Japanese covered bridge, the Assembly Hall of Cantonese Chinese Congregation, and Tan Ky House. Hoi An has attractive old temples, pagodas, small tile-roofed houses and narrow streets. Tan Ky House looks almost exactly as it did in the early 19th century.