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
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
Mexico City is built on top of an underground resevoir!
47
The water of the Antarctica is so cold that nothing can rot there.
334
It's still possible to see the division between East and West Germany due to different light bulbs.
5
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181