Dear MEL
Topic Readers,
How long
is China's Great Wall? 21,196 km
The
Great Wall. It’s one of the wonders in the world and in history, such as Machu
Picchu in Peru and Great Pyramid of Giza in Egypt. The original wall was built
over 25 centuries ago and has on and off been rebuilt, maintained, and enhanced
until the 17th century. It has recently been measured that the total
length goes beyond 21,000 km, a little over the half of Earth’s circumference.
Though
the wall was built to protect China from enemies outside, it has been ruined by
natural erosions, human acts and negligence of their own people. It is one of
the world heritage sites but there are endangered sections that need urgent repairs.
Chinese government has been putting a lot of effort, work and money to conserve
this historic asset and inherit it to the future. Modern technologies such as
drones are playing important roles to inspect and patrol this ancient
structure.
Enjoy
reading and learning how significant this great wall is.
Also, if
you’re interested in a human story of the wall, check this out.
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