全球十大嚇鼠人的巨洞，大家看是什麼原因造成的呢？

1. Udachnaya pipe

10 World’s Biggest and Most Amazing Holes:




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2.Guatemala City Sinkhole

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3.The Diavik Mine

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4.The Great Blue Hole

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5.The Bingham Canyon Mine

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6.The Mirny Diamond Mine, Russia

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7.Chuquicamata, Copper Mine, Chile

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8.The Monticello Dam, Napa County, California, US

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9.Kimberley Diamond Mine, South Africa

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10.Darvaza Gas Crater – The Door to Hell

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