The Caspian Sea is also classed as the world's largest lake.
52
One cubic mile of seawater contains about 50 pounds of gold.
79
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
The average ice berg weighs 20,000,000 tons!
54
The water of the Antarctica is so cold that nothing can rot there.
334
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18