They are large, sometimes dark, they seem to attract infinity, they are i more spectacular holes that nature, or the human hand, has given us. Do not stand there thinking evil, we refer to craters, wells, mine e thermal pools, chasms that give the world the appearance of an enormous colander.
The most fascinating is undoubtedly the Great Blue Hole, in the coral reef of Belize. A huge, perfectly circular hole with a diameter of 300 meters and a depth of 125: a blue paradise for diving enthusiasts. This show is due to nature. While it is a natural thermal pool there Morning Glory Pool, in the park of Yellowstone, in the United States, made orange by the bacteria that populate it. The phenomenon of cenote in Mexico and Central America creates water holes bright blue.
Created by the hand of man instead the Kimberley Big Hole, in South Africa. After the discovery of the largest diamond in the world, the wild diamond rush began in 1871. In short, the hole reached a depth of 1.100 meters. Still talking about diamonds, let's remember the mine wider than the world it is in Mirny, in Siberia. 1200 meters wide by 525 meters deep, not bad. The mine of Bingham Canyon, in the state of Utah (USA), is the largest man-made excavation in the world.
Always built by man, the Chand Baori wellin India, built in the 3.500th century to collect rainwater. To reach the bottom, XNUMX steps had to be descended. According to the legend it was built in one night by the spirits.
Il Burning Gates, in the Karakum desert, in Turkmenistan, is the result of an accident that occurred due to the Soviet exploitation of gas, it looks like a door that leads to hell. 4,5 km long Chuquicamata, also called Chuqui, is the largest open pit copper mine in the world.