Suoyangcheng Fortress

Suoyang City, also called Kuyu, is a ruined Silk Road city in Guazhou County of Gansu Province in northwestern China. First established as Ming'an County in 111 BC by Emperor Wu of Han, the city was relocated and rebuilt at the current site in 295 AD by Emperor Hui of the Western Jin dynasty. As the capital of Jinchang Commandery, the city prospered during the Tang and Western Xia dynasties. It was an important administrative, economic, and cultural center of the Hexi Corridor for over a millennium, with an estimated peak population of 50,000. It was destroyed and abandoned in the 16th century, after the Ming dynasty came under attack by Mansur Khan of Moghulistan. ()