These holes are not only amazing, but some of them
Are really terrifying - especially #8! The sheer scale
Of these holes reminds you of just how tiny you are.
1. 
Hole -
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.
The amount of earth removed by workers is estimated to
Total 22.5 million tons.
2. Glory Hole -
A glory hole is used
when a dam is at full capacity and
Water needs to b
e drained from the reservoir.
This is the 'Glory Hole' at
And it's the largest in the world of this type
Of spillway, its size enabling it to consume
14,400 cubic feet o
f water every second.
The hole can be seen at the top left of the photo above.
If you were to jump in for some reason, your body would
Shoot out near the bottom of the dam (below). There is
One person known to have had this experience. She did
Not live to tell of it.
3.
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 ¾ miles deep and 2.5 miles wide.
4. Great Blue
This incredible geographical phenomenon known as a
Blue hole is situated 60 miles off the mainland of
There are numerous blue holes around the world,
But none as stunning as this one.
At surface level the near perfectly circular hole is ¼
Mile wide, and the depth in the middle reaches 145
Meters. Obviously the hole is a huge hit with divers.
5. Mirny Diamond 
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.
The red arrow in the photo above is pointing
To a huge truck.
6.
This incredible mine can be found 300km
Northeast of
The mine is so huge and the area so remote
That it has its own airport with a runway large
Enough to accommodate a Boeing 737.
It looks equally cool when the surrounding
Water is frozen.
7. Sinkhole in
A sinkhole is caused when water,
Usually rainwater or sewage, is
Soaked up by the earth on a large
Scale, resulting in the ground
Collapsing the surface.
These photos are of a sinkhole that occurred
Early this year in
A dozen homes and killed at least 3 people.
Officials blamed the monster of a hole on a
ruptured sewage pipe.
And the really terrifying one... # 8
This is the famous 'Rat Hole' that you have heard about.
It is capable of swallowing trillions and trillions of
dollars... Annually! Never to be heard from again.
It makes me tremble & shiver!
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