There was once an undersea post office in the Bahamas.
241
The time interval from first sighting of the iceberg that sank the Titanic to impact was a little over 30 seconds.
105
Sharks, like other fish, have their reproductive organs in their chests.
248
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
The Caspian Sea is also classed as the world's largest lake.
52
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
The Titanic is about as long as the Empire State building is tall.
174