![6,000-year-old pentagon house discovered in North China(4/8)](http://www.ecns.cn/hd/2016/11/30/4bb565565769411bbd25898dd794a840.jpg)
A section of ancient wall discovered at the Neolithic ruins at Taoyuan, a village in the city of Linfen, Shanxi province. (Photo Provided to China Daily)
A section of ancient wall discovered at the Neolithic ruins at Taoyuan, a village in the city of Linfen, Shanxi province. (Photo Provided to China Daily)