Li or ri is a traditional Chinese unit of distance. The li has varied considerably over time but was usually about one third of an English mile and now has a standardized length of a half-kilometer. T
A section of the Song-era Anping Bridge in Fujian. The bridge is commonly known as the "Five-Li Bridge" due to its length.
The Great Wall of China is a series of fortifications in China. They were built across the historical northern borders of ancient Chinese states and Imperial China as protection against various nomadi
The Ming dynasty Great Wall at Jinshanling
Part of the Great Wall of China (April 1853, X, p. 41)
Great Wall of Han dynasty near Yumenguan