Many of the Dongfeng missiles are hidden at least 330ft below China's mountains and make up the country's 'underground Great Wall', described by Beijing propagandists as its 'last trump card.' ...

Mark Leong/ Redux The Great Wall of China is 4,000 miles long and much of it is starting to deteriorate. George Clerk/iStockPhoto The Great Wall of China snakes along a ridge in front of me ...

The Great Wall of China is not only a marvel of engineering but also an enduring symbol of China’s rich history. Stretching over 12,000 miles, the wall was constructed across multiple dynasties ...