The Great Wall, symbolizing China's ancient civilization, is one of the world's most renowned projects. It is a distance of 75 kilometres northwest of Beijing. Its highest point at Badaling is some 800 metres above sea level.
Construction of the Wall first began during the period of the Warring States (476 - 221 BC). Formerly, walls were built at strategic points by different kingdoms to protect their northern territories. In 221 BC after the first Emperor of the Qin Dynasty unified China, he decided to have the walls linked up and extended.
Historical records show that about 1 million people, one-fifth of China's population at the time, were involved in the project which took more than ten years. When it was finished we call it "Wan Li Chang Cheng" which means "Ten Thousand-Li-Long Wall". Now, nature has taken over most of the Great Wall.
The Great Wall which we are going to visit was rebuilt during the Ming Dynasty in the 16th century. It extends from Shanhaiguan Pass, a seaport along the coast of Bohai Bay, to Jiayuguan Pass in Gansu Province. Its total length is more than 6,700 kilometres.
Help: renowned adj. 著名的，闻名的。