The Great Wall is perhaps China’s most famous and most mythologized site. Several sections are conveniently visited from Beijing, including at Badaling, the most popular site, about 70 km (43 mi.) northwest of Beijing and at Mutianyu, 90 km (56 mi.) northeast of Beijing. These impressive brick and earth structures date from the Ming dynasty, when the wall was fortified against Mongol forces to the north. The Ming wall is about 26 feet tall and 23 feet wide at the base, and could accommodate up to six horsemen riding abreast. Watch towers were built on high points every 200-300 meters or so with small garrison forces that could communicate with fire signals or fireworks. These stretches of the wall are part of a system that extends from the Shanhaiguan fortress on the Bohai Gulf in the east to the Jiayuguan fortress in the west, altogether some 6000 km (3700 mi).

The Ming sections of the wall are only a late stage in a long history, much of which has little to do with the present structures.  The wall is most often associated with the First Emperor of China (Qin Shi Huangdi, reigned 221-210 BC), who after unifying China by conquest undertook to link up previously existing sections of walls belonging to conquered states, but on a course far to the north of the present wall. The First Emperor mobilized massive conscripted labor forces, including convicts and prisoners, by some accounts up to a million strong, to conduct this building campaign.

While the Great Wall in its various versions had real military defensive functions, it also served symbolic purposes. For long periods Chinese populations lived north of the wall and nomads or semi-nomads lived south of it. The wall served as a symbolic reminder of dynastic authority and also of cultural distinction between settled agrarian culture and cities on the Chinese side and pastoral horsemen on the other. It continues today to serve as a marker of cultural and national identity.

The Great Wall-Badaling Section:

The Great Wall is a symbol of Chinese civilization, and one of the wonders that the Chinese people have created. Badaling Great Wall, the most representative part, was promoted as a key national cultural relic, protected under the approval of the State Council in 1961. In 1988, it was enlisted in the World Cultural Heritage Directory by UNESCO. July 7, 2007 has once again witnessed the worldwide reputation that the Great Wall gained: it was listed among the New Seven Wonders of the World.

Badaling Great Wall is situated in Yanqing County, over 70 kilometres (43 miles) north of Beijing. It is the most well-preserved section of the Great Wall, built during the Ming Dynasty (1368-1644). This section with an average altitude of over 1,000 meters (3,282 feet) is the outpost of the Juyongguan Pass. The mountain slope is very steep and the roads are tortuous. These features made it a military stronghold. Badaling Great Wall is like a strong dragon winding its way along the mountain ranges.

Badaling Great Wall was the earliest part of the great Wall opened to tourists. It has drawn tens of millions of tourists both from home and abroad. More than 370 foreign leaders and celebrities have visited there.