00:00The Great Wall of China, a magnificent human creation, but full of mysteries. Ready to solve it?
00:06Did you know that the Great Wall of China isn't just 8,000 kilometers long as we think?
00:11The latest data shows its actual length is over 21,000 kilometers.
00:17Many sections are hidden and recently discovered.
00:20The building materials are also mysterious.
00:23Besides stone and soil, ancient workers used sticky rice as a binder.
00:28Now, here's the most famous myth.
00:30The Great Wall of China is visible from the moon.
00:33The fact? No, that's just a myth.
00:36Its original function wasn't just a fortress.
00:38It was a complex defense system, including communication and surveillance lines.
00:44Isn't that cool?
00:45Let's explore more of the world's mysteries together.
00:48Like, share, and follow for more interesting videos.
