There are a lot of big holes in the world becouse of human made or naturel happens. This are the biggest. And there are no photoshops on pictures…
Mirny diamon mine from east Siberia. Mirny is 525 m. depth and 1.25 km in diameter.
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