Photos: Great Wall of China
Voted one of the New Seven Wonders of the World, the 4,000-mile wall snakes its way across 11 Chinese provinces and draws millions of tourists every year, mostly to restored sections near the capital, Beijing. But away from the tourist trail, some parts of the wall are being allowed to crumble away.
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A sign stands near a section of the Great Wall of China that is decaying and overgrown with vegetation located near Xiang Shui Hu village.