I show you the biggest diamond rush which the world has ever seen. Kimberley (the capital of the Northern Cape, South Africa) is famous with the Big Hole. It's a huge open-pit diamond mine and claimed to be the largest hole excavated by hand. 50,000 miners dug a almost circular hole with a surface area of about 17 hectares, a perimeter of about 1,6 km and depth around of 215m,
