nilah daftar lobang paling menakjubkan dan sekaligus menyeramkan
1. Kimberley Big Hole – South Africa
2. Glory Hole – Monticello Dam, California
3. Bingham Canyon Mine, Utah
4. Great Blue Hole , Belize
5. Mirny Diamond Mine , Serbia
6. Diavik Mine, Canada
7. Sinkhole in Guatemala
