Visitors look at sculptures featuring farmers of Xiaogang Village of east China's Anhui Province, who signed an agreement paper to de-collectivize farmland, displayed at a major exhibition to commemorate the 40th anniversary of China's reform and opening-up held at the National Museum of China in Beijing, capital of China, Nov. 18, 2018. The exhibition has attracted more than 190,000 visitors since it opened on Nov. 13. (Xinhua/Cai Yang)