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THE LARGEST underground chamber in the world can be found in China, called the Miao Room, and can fit a whopping four Great Pyramids of Giza inside it. How large is the biggest supercave?
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[ad_1]
THE LARGEST underground chamber in the world can be found in China, called the Miao Room, and can fit a whopping four Great Pyramids of Giza inside it. How large is the biggest supercave?
[ad_2]
Read More