1. Darvaza Gas Crater
Derweze areas rich in native gas. Following the history, geologists in 1971 inadvertently encounter a subterranean cave full of original gas source. Unfortunately the ground beneath the rubble and had to leave a big hole with a diameter of about 50-100 meters. To circumvent the disposal of toxic gas, it was decided to burn the gas that comes out. Geologically it is hoped the fire would come out in a few days but gas continued to burn after that. There are several places around the world that people believe is the doorway to hell.
2. Kimberley Diamond Mine
Also recognized by the Big Hole. Disabled mat soil excavation using the world's largest human hands. In 1866 to 1914 as many as 50 000 workers dug with picks and shovels to search for 2.722 kg of diamonds.
3. Monticello Dam
Located in Monticello Dam at Tasik Berryessa, northern California, this acts as a giant hole injap tasik. Empangan and injap is fostered between 1953 and 1957. He was able to swallow solid 48,400 feet per time (1370 m³ / s) and distance than the channel to the exit point is approximately 700 meters. Type injap the origin is a concrete channel ogre. The hole's largest diameter is 72 meters and shrink about 28 meters.
4. Birmingham Canyon Mine
The Bingham Canyon Mine, also known as Kennecott Copper Mine owned by Rio Tinto Group, an IT infrastructure antarabangsa perlombongan based in United Kingdom. Excavation has been in operation since 1863, so today and has resulted in the creation of a hole that merangkumi 1,900 hectares (7.7 km ²). Bingham Canyon Mine is the largest man-made excavation in the world. It has been recognized by the National Historic Landmark in 1966 under the name Bingham Canyon Open Pit Copper Mine.
5. Great Blue Hole
The Great Blue Hole is a huge drain on the outer coast of Belize, a country in Central America. This hole is formed as a limestone cave system during the last ais times when sea level was much lower. There are many blue holes in the world but can not match the greatness of a blue hole on this one. He has also become a World Heritage Site United Nations Educational, Scientific and Cultural Organization (UNESCO).
6. Mirny Diamond Mine
The second largest man-made hole in this world is a diamond mine located on the outskirts of Mirny, a small airport in eastern Siberia. Excavation encountered on Jun 13, 1955 by Soviet geologists Yuri Khabardin, Ekaterina Elagina and Viktor Avdeenko Amakinsky during the Expedition. Excavation is 525 meters (1720 feet) deep and has a diameter of 1,200 m (3.900 ft). The room air over the quarry was closed for helicopters kerana are instances where they have been disedut by downward air flow.
7. Diavik Mine
Diavik Diamond Mine is a diamond mine in Northwest Territories North Region, Canada, about 300 kilometers (186 stone) north of Yellowknife. He has become an important portion to the local economy so as to menggajikan of workers and 700 and produces 8 million carats (1600 kg) of diamonds every year. Excavation footprint is owned by the company between Harry Winston Diamond Corporation and Diavik Diamond Mines Inc., a subsidiary of Rio Tinto Group's IT infrastructure. Age 16-22 years old quarry was budgeted.
8. Sinkhole
On February 23, 2007, a hole as deep as 330 feet have been formed and lead It was swallowed 12 homes and three people terkorban. These holes cause the odor. Ruling party blamed the sinkhole on the flow of laundry underground rupture.
9. Udachnaya Pipe
Udachnaya Pipe - Russia, is a hole to look for gemstones. The hole was stopped operation in 2010, a hole was found in 1955 with a depth of 600 meters.
10. Chuquicamata
Chuquicamata - Chile, is the largest copper pit for income in the world with a depth of 850 meters.