There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
112
Mexico City is built on top of an underground resevoir!
47
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The Caspian Sea is also classed as the world's largest lake.
52
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61