NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
The Caspian Sea is also classed as the world's largest lake.
52
The time interval from first sighting of the iceberg that sank the Titanic to impact was a little over 30 seconds.
105
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Two dogs were among the Titanic survivors.
262
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119