A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
There are more than 50,000 earthquakes throughout the world every year!
47
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
Europe is the only continent without a desert.
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