These holes are not only amazing, but some of them are really terrifying!
The sheer scale of these holes reminds us of just how tiny we are.

Kimberley 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.

Glory Hole, Monticello Dam, California

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. A Glory Hole is used when a dam
is at full capacity and water needs to be drained from the reservoir.

Bingham Canyon 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 miles deep and 2.5 miles wide.

Diavik Mine, Canada

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.

Mirny Diamond Mine, Serbia

This hole is an absolute beast and holds the title of largest open diamond mine
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.

Sinkhole, Guatemala

These photos are of a sinkhole that occurred early this year in Guatemala.
This hole swallowed a dozen homes and killed at least 3 people.

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.

Can't Miss Hole, Dubsdread Course, Orlando, Florida

Oops! You missed it!

See the Guatamala City sink hole, next.