The Great Wall

For the #EarthDay we chose a work of man that until some time ago, due to its incredible length, was believed to be visible with the naked eye even by the Moon
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It’s UNESCO World Heritage Site and one of the seven #wonders of the modern world
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The Great #Wall of China, whose original name is Chángchéng (“Long Wall”), is not only the most iconic Chinese symbol, but also an important ancient defensive #architecture a military defensive system built more than 2300 years ago.

With its 21.196,18 km and its 8 mt height the #GreatWall is still considered the longest wall in the world
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The first stone was laid in 770 B.C. by the Duke of the Qi State to #protect the territorial borders from the invasion of foreign enemies. However, most of today’s Great Wall was built between 1368 and 1644 during the Ming Dynasty.

Unfortunately, due to natural erosion and human damage, we lost about 2 km of the original structure