12 mysterious deepest holes in the planet

Here is a list of the 12 most mysterious deep pits on the planet that contain many mysteries. When anyone looks at it, everyone is overwhelmed and feel like they have been swallowed by the ground.

1. Darvaza (Gate of Hell), Turkmenistan

This fire pit has a diameter of 61m and a depth of 20m and this is a man-made product. In 1971, when people drilled the land, natural gas leaked out and they set fire to burn them all down.

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However, nearly 50 have passed and the fire still flickers to this day.

2. The St. Well Patrick's, Orvieto, Italy

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This deep and elaborate well was built in 1527 to provide water for the whole city in a siege.

3. Big Hole in Kimberley, South Africa

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Big Hole is a large diamond mine that has ceased operations in Kimberley, South Africa. In the last century, thousands of people came here to mine diamonds and with hand tools like a hoe and shovel they dug a giant hole 500 meters in diameter and 400 meters deep.

The world famous diamond De Beers with a weight of 428.5 carats was found in the Big Hole.

4. The spillway of a hydroelectric lake, Northern California

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This spillway is capable of releasing thousands of liters of water within seconds. This is an artificial pit built 50 years ago and has an impressive beauty, attracting many visitors.

5. Great Blue Hole, Belize Reef

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This huge and almost perfectly circular oceanhole is a product of nature. It has a diameter of 305m and a depth of 122m, inside it hides beautiful coral reefs.

6. Crater of Yasur, Vanuatu island

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Yasur is a volcano on Vanuatu island and is still active. Its most recent eruption occurred in 2017. This is one of the most accessible active volcanoes in the world and attracts a lot of tourists.

7. Reverse tower in Masons, Portugal

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This is a huge well with spiral staircase around was built in the early 20th century. People here consider this tower a sacred place, the intersection between light and darkness. This tower can accommodate a 10-story building.

8. Er Wang Dong Cave, China

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This is a massive cave system with a separate ecosystem inside. Here we can see strange creatures that cannot be found anywhere else on the planet.

9. Cerro Sarisariñama Cave, Venezuela

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Hundreds of years ago, many landslides turned the towering Sarisariñama into Bolívar state, Venezuela into a giant cave isolated from the outside world. Inside the cave there is a separate ecosystem.

10. Eisriesenwelt cave, Austria

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This cave is located at an altitude of over 1500m, with a length of nearly 42km and a depth of nearly 400m. This is considered the largest ice cave in the world.

11. Sinkholes in Guatemala City

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A 3-storey factory, along with a house next to it, disappeared completely underground on June 1, 2010.

12. Mutnovsky ice cave, Russia

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This is a strange ice cave because it has been icy for many years even though it is right next to the volcano. The cave dome is extremely beautiful because it is covered with colorful ice cubes.