Mirny Diamond Hole ( Siberia )
Great Blue Hall ( Belize )
Burning Gates Of Turkmenistan
Kimberley Big Hole( South Africa )
Bingham Canyon Mine Hall ( Utah )
Glory Hole in Monticello Dam ( California )
Diavik Diamond Mine ( Canada )
Guatemala Sinkhole
Chuquicamata Copper Mine ( Chile )
Udachnaya Pipe ( Russia )
