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At its core, the Great Wall is an extraordinary feat of architecture, built on rocky ridges that soar over 1,000 meters in elevation. Spanning an incredible 21,196 kilometers, it holds the title of the longest man-made monument in the world, constructed from nearly 4 billion bricks. While only a mere fraction of it is well-known among tourists near Beijing, satellite imagery has unveiled the Wall’s far-reaching expanse that traverses 15 Chinese provinces, evoking the image of a dragon winding across the landscape.