great blue hole - belize
sinkhole - Guatemala
Diavik mine - Canada
glory hole - monticello dam
bingham canyon mine - utah
mirny diamond mine - siberia
kimberley big hole - south africa
sinkhole - Guatemala
Diavik mine - Canada
glory hole - monticello dam
bingham canyon mine - utah
mirny diamond mine - siberia
kimberley big hole - south africa
Lubang Dunia
4/
5
Oleh
conic
