Top 10 Ridiculously Rare Natural Phenomena You Have to See to Believe

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3. The Hessdalen Light

Hessdalen Light is an unexplained light phenomenon that occurs in Hessdalen valley of Norway. They were observed over 15 to 20 times per week from 1982 until 1984. Since then, the activity has decreased and now the lights are observed about 10 to 20 times per year.

2. Brinicles

When the surface of the sea freezes, it does so in a way that forces pockets of especially cold and salty seawater to gather on the underside of the ice. This mixture of brine is denser than the seawater below it, and as a result it tends to slowly sink to the bottom.

Now, because it's so cold, the fresher water below the brine actually freezes around it as it falls, which results in a giant icicle under the surface.

1. The Door To Hell

Oh wait, here's The Door to Hell, a gas fire in Turkmenistan accidentally ignited by scientists in 1971 and still burning. Oops.

If you ever get a chance to travel the world, make sure you don't miss these natural phenomena.

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