1. Kimberley Big Hole -  South Africa


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

2. 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.

3 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.

4 Sinkhole  in  Guatemala

This photo is of a sinkhole that occurred February 2007 in  Guatemala .
It swallowed two dozen homes and killed at least three people.

And the really terrifying one!

#5. This is the famous “Rat Hole” that you have heard about.
It is capable of swallowing Millions and Millions of Tax Payers Money annually, never to be heard from again! It is reputed to contain at least 150 a@@ “holes”.