1. Mirny Diamond Mine in Siberia


2. Great Blue Hole – Belize


3. Burning Gates of Turkmenistan


4. Kimberley Big Hole - South Africa


5. Bingham Canyon Mine – Utah


6. Glory Hole in Monticello Dam California


7. Diavik Diamond Mine – Canada


8. Guatemala Sinkhole


9. Chuquicamata Copper Mine – Chile


10. Udachnaya Pipe – Russia


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