One cubic mile of seawater contains about 50 pounds of gold.
79
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
Mexico City is built on top of an underground resevoir!
47
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119