Pupils from Wuhai and southeast China's Taiwan show calligraphy works written by them at a cross-Strait exhibition of calligraphy, paintings and rare stones in Wuhai, north China's Inner Mongolia Autonomous Region, Aug. 11, 2012. The three-day exhibition opened in Wuhai on Saturday, displaying over 200 calligraphy works, paintings and rare stones from both the Chinese mainland and Taiwan. [Xinhua/Wang Ying]