10 big holes in the world

The most amazing and strange 10 big hole in the world
1.  mirny-diamond at Serbia

2. meteor crater at Arizona

3. green big hole in Kimberly

4.  big hole Bingham at Utah

5. Bighole in Rusia

6. glory-hole dam in california

7. diavik mine at Canada

8. great blue hole in Belize

9. Strange sink Big hole at Guatemala


10. Hell gate hole in Uzbekistan