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
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
One cubic mile of seawater contains about 50 pounds of gold.
79
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
