It takes a drop of ocean water more than 1,000 years to circulate around the world.
More than 25% of the world's forests are in Siberia.
More Geography Facts
1,000 years to circulate
Redwood tree fact
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
Population density as Alaska
If Manhattan had the same population density as Alaska, there would only be 15 people living there.