Uji (宇治市) is a city on the southern outskirts of the city of Kyoto, in Kyoto Prefecture, Japan. Uji is located between the two ancient capitals of Nara and Kyoto. The city sits on the Uji River, which has its source in Lake Biwa. In the 4th century the son of Emperor Ōjin established a palace in Uji. Three Battles of Uji-gawa took place here in 1180, 1184, and 1221. Shogun Ashikaga Yoshimitsu (1358–1408) promoted cultivation of green tea in the Uji area. Since that time Uji has been an important production and distribution center of superior quality green tea. Tsuen tea has been served since 1160 and is still sold in what is the oldest tea shop in Japan, and possibly the world—the Tsuen tea shop. Most visitors are attracted to Uji for its centuries old historic sites which include many Shinto shrines and Buddhist temples. Among the most famous are the Ujigami Shrine (built in 1060) and the Byōdō-in which are listed as part of the UNESCO World Heritage Site "Historic Monuments of Ancient Kyoto". Other religious sites include the Mampuku-ji, the head temple of the Ōbaku Zen sect, built in Chinese Ming style in 1661 and the Zen temple Kōshō-ji, with its Kotozaka entrance (framed with dense thickets of cherry, kerria, azalea, and maple trees, each of which dramatically changes color with the seasons) constructed in 1648. Also noteworthy is the Mimuroto-ji, which is famous for its abundance of purple hydrangeas. The city also features numerous other small Shinto shrines. With a few exceptions, most of the important historical sites are located within walking distance of one another. The last ten chapters of the Japanese classic novel The Tale of Genji took place in Uji, and so there is The Tale of Genji Museum.