A machine works at the site of a former concentration camp in Taiyuan, capital of north China's Shanxi Province, Aug. 3, 2015. Renovation of the former "Taiyuan Concentration Camp" began in July and will finish at the end of August. The former "Taiyuan Concentration Camp" built by the invading Japanese army was one of the biggest and earliest of its kind in North China during WWII. (Photo: Xinhua/Zhan Yan)
