One cubic mile of seawater contains about 50 pounds of gold.
79
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
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 Atlantic Ocean is saltier than the Pacific Ocean.
54
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109