In pics: residence courtyard of Bai ethnic group in Dali

Photo taken on Aug. 5, 2015 shows engraved wooden doors of Bai ethnic group in Dali, southwest China's Yunnan Province. The Bai architecture is characterized by three buildings forming a U and a fourth wall as a screen. The middle has a courtyard. The houses are usually built out of brick and wood, and the screen wall is built with brick and stone. (Xinhua/Yang Zongyou)