Photo taken on March 5, 2015 shows the stage of Guangdong Guild Hall in north China's Tianjin Municipality. China's performing stage is an essential part of traditional Chinese architecture. Most well-preserved ancient stages were built in Ming Dynasty (1368-1644) and Qing Dynasty (1644-1911). It generally consists of indoor and outdoor types. The main construction materials are wood, brick and stone. Its unique acoustics property has become an important object for experts. (Photo: Xinhua/Wang Song)
