6. KIMBERLEY MINE
We could produce an entire quiz show on this entry alone. Where were the world’s first hard-rock diamond deposits found? What is the name of a South African open pit mine that has been nominated to be a World Heritage Site? The answer to all those and many other questions is The Big Hole, a splendid sobriquet that the Kimberly Mine answers to. The mine was in operation between 1871 and 1914.