There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
Mexico City is built on top of an underground resevoir!
47
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 North Atlantic gets 2.5 centimetres (1in) wider every year.
119