AS CHN NO BEI Dongcheng 2017AUG08 ZhengyangGate 003
Zhengyang Gate was one of nine, and the tallest gate, that made up the Inner City wall that ran 15 miles (24 kilometres) long, 49 feet (15 meters) high, with a thickness of 66 feet (20 meters) at ground level and 39 feet (12 meters) at the top.