There are a lot of big holes in the world because of man made or natural happens.
Mirny diamon mine from east Siberia. Mirny is 525 m. Depth and 1.25 km in diameter
Mirny
Mirny
Mirny
Kimberly Hole from South Africa . It is a diamond mine
Kimberly Hole is about 1097 m. Depth
Bingham Canyon Hole from UTAH . Its depth above 1 km and about 4 km width
Deep Blue Hole is 60 mil away from Belize and it is very amazing…Its depth is 145 m. And 400 m. Width
In Guetemala becouse of heavy rain this hole is open and destroyed a lot of house
