The Caspian Sea is also classed as the world's largest lake.
52
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
Jellyfish as a species are actually older than dinosaurs and sharks.
383
The time interval from first sighting of the iceberg that sank the Titanic to impact was a little over 30 seconds.
105
Water is actually naturally blue.
48
It's impossible to sink in the Dead Sea without equipment!
72
There was once an undersea post office in the Bahamas.
241