DVD. Global Treasures. 10 Minutes. A mighty wall and a wide moat still surround large areas of the old town of Chiang Mai. Today, the moat that was once used to defend the city adds to the wonderful atmosphere of this historic town and it is believed that around ninety thousand men worked on the city's massive wall at the end of the 13th century. The beauty of Chiang Mai can be seen in numerous of its temple sites such as the Wat Doi Suthep Temple, the most important sanctuary in northern Thailand. Just a few steps from the famous tourist shopping mile of San Khampaeng Road is one of the most beautiful temples in Chiang Mai. The true gem of the Wat Buakkhrok Luang is the magnificently furnished Viharn, the temple's assembly room that is constructed of teak. The city's centuries old sanctuaries testify to the impressive cultural wealth of Chiang Mai and highlight the unique artistic value of this beautiful and charming city that is quite rightly also known as `The Pearl of the North'.