If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
One cubic mile of seawater contains about 50 pounds of gold.
79