ZainAhmed
Age: 37
5047 days old here
Total Posts: 27
Points : 24
Location:
Karachi, Pakistan
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6. Mirny Diamond Mine-Siberia: The Mirny Diamond Mine is 525m deep and has a diameter of 1200m. It was the first, and one of the largest, diamond Pipes in the USSR. It is now abandoned. While it was still operational, it would take two hours for trucks to drive from the top to the bottom of the mine. Image source: Wikimapia
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