Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
The Sahara desert expands at about 1km per month.
90
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
Mexico City is built on top of an underground resevoir!
47
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109