Chengziya, Archaeological site in China
Chengziya, the remains of one of the earliest cities in ancient China.
Dates back to the Longshan culture, approximately from 2600 BCE to 2000 BCE.
An important site for understanding prehistoric Chinese civilization.
Designated a Major Historical and Cultural Site Protected at the National Level.
Features the oldest known city walls in China.
Location: Zhangqiu District
Source: Wikimedia