patreon.com/freeschool - Help support more content like this! The Great Wall of China is a monumental landmark in China and the longest structure ever built by humans. Construction on it started more than two thousand years ago and continued, off and on, for almost a thousand years until 1644. Did you know the Great Wall cannot actually be seen from the moon? However, if you were in a low enough orbit and new exactly where and how to look, you might be able to see it. Like this video if you want to see more videos about LANDMARKS! Subscribe to FreeSchool: www.youtube.com/user/watchfreeschool?sub_confirmation=1 Visit us on Facebook: www.facebook.com/watchFreeSchool Check our our companion channel, FreeSchool Mom! www.youtube.com/channel/UCTcEtHRQhqiCZIIb77LyDmA And our NEW channel for little ones, FreeSchool Early Birds! www.youtube.com/channel/UC3OV62x86XHwaqsxLsuy8dA Music: Jaunty Gumption, The Other Side of the Door - Kevin MacLeod (incompetech.com) Image and Video Credits: Remnants of the Great Wall of Qi in the Da Feng Shan by Rolfmueller Dongjiakou fortress, Great Wall by danmairen The Great Wall of China by Fabien Dany - www.fabiendany.com Great Wall from Space by NASA Great Wall from the Chinese Knot by DearEdward Looking back by Peter Dowley

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