A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
More than 25% of the world's forests are in Siberia.
51
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
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