Followers take part in the ceremony of unfolding a huge Thangka Buddha portrait at Drepung Monastery in Lhasa, capital of southwest China's Tibet Autonomous Region, Aug. 14, 2015. More than 200,000 Buddhists and other believers on Friday thronged Lhasa for the start of the traditional Shoton Festival. The Shoton Festival, also known as the Yogurt Banquet Festival, is a week-long gala held since the 11th century. [Photo/Xinhua]