More than 25% of the world's forests are in Siberia.
51
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
One cubic mile of seawater contains about 50 pounds of gold.
79
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
The Caspian Sea is also classed as the world's largest lake.
52
Every year, Alaska has about 5,000 earthquakes.
31