The Great Wall of China is a historical defensive structure along the historical northern borders of China that was supposed to protect the Chinese states and empires from nomadic attacks from the Eurasian steppe. Several walls were built already in the 7th century. Ave. m. e. Later they were united, enlarged and strengthened and are now collectively called the Great Wall
Now only a couple of kilometers have been restored, entire parts of the wall are half-ruined, while others are completely decayed. For a long time, there has been a widespread myth that the Great Wall of China can be seen from space with the naked eye. This is not the case because the wall is not wide enough.
In many parts of the Great Wall of China, there are monuments with Mao Zedong’s popular phrase in China: “He who has not climbed the Great Wall of China is not a true Chinese.” in 1987 The Great Wall of China has been declared a World Cultural Heritage Site by UNESCO.