If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
Two dogs were among the Titanic survivors.
262
The Caspian Sea is also classed as the world's largest lake.
52
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
The time interval from first sighting of the iceberg that sank the Titanic to impact was a little over 30 seconds.
105
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
There was once an undersea post office in the Bahamas.
241