Amazing Holes

Mirny Diamond Mine , Serbia

I'm pretty sure most people have seen this one.
It's an absolute beast and holds the title of largest
open diamond mines in the world. At 525 meters
deep, with a top diameter of 1200 meters, there's
even a no-fly zone above the hole due to a few
helicopters having been sucked in.

Great Blue Hole , Belize

This incredible geographical phenomenon known as a
blue hole is situated 60 miles off the mainland of Belize.
There are numerous blue holes around the world,
but none as stunning as this one.

BinghamCanyon Mine, Utah

This is supposedly the largest man-made excavation on earth. Extraction began in 1863 and still continues today, the pit increasing in size constantly. In its current state the hole is 3/4 miles deep and 2.5 miles wide.

Glory Hole - Monticello Dam, California

A glory hole is used when a dam is at full capacity and water needs to be drained from the reservoir


This is the 'Glory Hole' at Monticello dam, and it's the largest in the world of this type of spillway, its size enabling it to consume 14,400 cubic feet of water every second.

Kimberley Big Hole - South Africa

Apparently the largest ever hand-dug excavation in the world,
this 1097 meter deep mine yielded over 3 tons of diamonds
before being closed in 1914.