Israel's Dead Sea is 1,312 feet below sea level.
48
One cubic mile of seawater contains about 50 pounds of gold.
79
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Even Antarctica has an area code. It's 672.
58
More than 25% of the world's forests are in Siberia.
51
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109