Europe is the only continent without a desert.
62
There are more than 50,000 earthquakes throughout the world every year!
47
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
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