Combo photo shows construction components unearthed from an archaeological site of an ancient city built in the Jin Dynasty (1115-1234), at Taizicheng Village in Chongli District of Zhangjiakou City, north China's Hebei Province. Six archaeological findings including the Taizicheng site were named as China's new discoveries in 2018 by the Chinese Academy of Social Sciences in Beijing, capital of China, Jan. 10, 2019. (Xinhua)