kimberley big hole - south africa
mirny diamond mine - siberia
bingham canyon mine - utah
glory hole - monticello dam
Diavik mine - Canada
sinkhole - Guatemala
great blue hole - belize
sumber :
http://www.supermance.com/
kimberley big hole - south africa
mirny diamond mine - siberia
bingham canyon mine - utah
glory hole - monticello dam
Diavik mine - Canada
sinkhole - Guatemala
great blue hole - belize
sumber :
http://www.supermance.com/
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