There's a lake under Antarctica that is 25 million years old called Lake Vostok.
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Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The water of the Antarctica is so cold that nothing can rot there.
334
In 1850, only 8% of the people in California were women.
0
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
More than 25% of the world's forests are in Siberia.
51