The Door to Hell, Ahal Province, Turkmenistan

The Darvaza gas crater or “The Door to Hell” is a 60 meters wide and 20 meters deep hole in the heart of the hot, expansive Karakum desert in Turkmenistan, that has been on on fire for the last 38 years. As of 2013, the hole is still burning. But the hole is not of a natural origin. The large crater is a result of a Soviet gas exploration accident that occurred in 1971. The Darvaza (also known as Derweze) area is rich in natural gas. While drilling in 1971, the Soviets accidentally tapped into a massive underground natural gas cavern, causing the ground to collapse and the entire drilling rig to fall in. To prevent escape of poisonous gas into the atmosphere, the geologists decided to light it on fire. They had hoped the fire would use all the fuel in a matter of days, but as it turns out, the supply of natural gas below the crater is near infinite as the crater’s been burning since. door to hell interesting  but true facts

The most toxic substance on earth.

The most toxic substance known is botulinum toxin. 100 nanograms is enough to kill a full-grown man; 1kg (2 pounds) would be enough to wipe out the entire human race. It is secreted by a bacterium, C. botulinum. It causes muscle paralysis by cutting off proteins which normally enable vesicle function at the neuromuscular junction. Millions of people willfully have botulinum toxin injected into their faces every year, under the trade name Botox®. For more shocking facts on history, visit the Cracked page