Great Wall of China Great Wall of China The Great Wall of China is a series of fortifications made of stone, brick, tamped earth, wood, and other materials, generally built along an east-to-west line across the historical northern borders of China to protect the Chinese states and empires against the raids and invasions of the various nomadic groups of the Eurasian Steppe with an eye to expansion. Several walls were being built as early as the 7th century BC; these, later joined together and made bigger and stronger, are collectively referred to as the Great Wall. Especially famous is the wall built in 220–206
Hushan Great Wall Hushan Great Wall The Hushan or Tiger Mountain Great Wall (), known to Koreans as Bakjak Fortress (Hangul :박작성 Hanja :泊汋城), is the most easterly known part of the Great Wall of China. About 600 metres of remains were excavated here in 1989. In 1992, a section of wall was renovated and opened to the public, forming a popular tourist attraction. The wall runs for about 1,200 metres over Hushan (Tiger Mountain). The wall starts 15 km northeast of Dandong city, directly beside the China–North Korea border. It then climbs steeply up to a height of 146.3 metres before descending