Great Wall of China crumbling due to mining
October 20, 2011 7:50 AM
Sections of the Great Wall of China appear to be crumbling due to unregulated mining near the landmark. Betty Nguyen reports.
October 20, 2011 7:50 AM
Sections of the Great Wall of China appear to be crumbling due to unregulated mining near the landmark. Betty Nguyen reports.
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