One cubic mile of seawater contains about 50 pounds of gold.
79
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
It's still possible to see the division between East and West Germany due to different light bulbs.
5
Mexico City is built on top of an underground resevoir!
47
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
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59