10 lubang terbesar didunia

Great Blue Hole – Belize

Gerbang Neraka di turkmenistan

Kimberley Big Hole - Afrika Selatan

Bingham Canyon Mine – Utah

Glory Hole in Monticello Dam California

Diavik Diamond Mine – Canada

Guatemala Sinkhole

Chuquicamata Copper Mine – Chile

Udachnaya Pipe – Russia

Sumber: http://niponk.blogspot.com/2011/01/10-lubang-terbesar-di-dunia.html#ixzz1bVmB2BsC