Tourists walk along the Badaling – the most visited section of the Great Wall of China, 75 km from Beijing, China. It was restored under Mao Zedong and the first section open to tourists. Great Wall of China is one of the main attractions of China and is one of the so-called “new seven wonders of the world.” Its construction began back in the III century BC to protect from attacks by nomadic Huns and continued until 1644. To date, well-organized are those sections of the Great Wall of China, which are located near large cities were built last. Distant areas is gradually declining and absorbed by nature. The length of the Great Wall of China is 8,850 miles. The western end of the Great Wall, Jiayuguan, Gansu Province.