Every year, Alaska has about 5,000 earthquakes.
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Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
More than 25% of the world's forests are in Siberia.
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The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
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The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
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There are more than 50,000 earthquakes throughout the world every year!
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