There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The average ice berg weighs 20,000,000 tons!
54
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
Mexico City is built on top of an underground resevoir!
47
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
In 1850, only 8% of the people in California were women.
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