China

“Largest town on the former postal road between Beijing and Datong, Cockcrow was constructed in 1420 to protect the military and public post stations that served the northwest

“Mount Qingcheng is amongst the most important centres of Taoism in China. It is host to many temples, the best preserved one being Jianfu Temple.” More on Wikipedia.

“The Dujiangyan irrigation system was originally constructed around 256 BC by the Qin during the Warring States period. It is still in use today to irrigate over 5,300

“In c. 220 B.C., under Qin Shi Huang, sections of earlier fortifications were joined together to form a united defence system against invasions from the north. Construction continued

“Situated at a strategic point along the Silk Route, at the crossroads of trade as well as religious, cultural and intellectual influences, the 492 cells and cave sanctuaries

“The Jiaohe Ruins are a natural fortress located atop a steep cliff on a leaf-shaped plateau between two deep river valleys. Jiaohe was an important site along the