There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
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
In 1850, only 8% of the people in California were women.
0
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
Europe is the only continent without a desert.
62