Yangcheng
China
Yangcheng (Yángchéng) was the first capital of the Xia dynasty (c. 2070–1600 BC) of China. In ancient texts, the city was founded by Yu the Great (founder of the Xia), or was his residence. In the Bamboo Annals and Shiben, Yangcheng was located near Mount Song and the Wudu and Ying rivers (close to modern Gaocheng, Henan).
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).