Photo taken on Oct. 13, 2011 shows the scene of a commemoration exhibition in Beijing, capital of China. A painting and calligraphy exhibition in commemoration of the 100th anniversary of China's 1911 Revolution opened at the China Millenium Monument in Beijing on Thursday. The exhibition displayed over 300 pieces of paintings and calligraphy works created by celebrities from Hong Kong, Taiwan and the Chinese mainland as well as overseas Chinese from more than 20 countries and regions. (Xinhua/Li Xin)