14. The Patomskiy Crater
This odd rock formation has baffled scientists for decades. In 1949, scientists discovered a large crater in southeastern Russia. The rock is made up of large chunks of limestone. Scientists believe that the crater was formed no more than 350 years ago.
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Geologists have posited that the crater was a result of either a volcanic eruption, meteorite, and some sort of subterranean gaseous explosion. Naturally, some suspect extra-terrestrial beings.
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