The most comprehensive and technologically advanced survey of China's Great Wall has discovered the ancient monument is much longer than previously estimated, state media reported Monday.
However the project has also shown the World Heritage-listed site is in danger of disappearing in many places due to road construction and other forms of development, as well as extreme weather, the China Daily said.
The wall, built over centuries to keep foreigners out of China, stretches for 8,851.8 kilometres (5,488.1 miles), much further than common estimates of 5,000 kilometres, according to the findings of the survey....
Larry Pan | 7/4/2009
