A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
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The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The Sahara desert expands at about 1km per month.
90
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
In 1850, only 8% of the people in California were women.
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