An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
There are more than 50,000 earthquakes throughout the world every year!
47
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
Mexico City is built on top of an underground resevoir!
47
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
In 1850, only 8% of the people in California were women.
0