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 city of Houston, Texas is built on a swamp and is slowly sinking!
89
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
Europe is the only continent without a desert.
62