NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
There was once an undersea post office in the Bahamas.
241
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
The time interval from first sighting of the iceberg that sank the Titanic to impact was a little over 30 seconds.
105
It's impossible to sink in the Dead Sea without equipment!
72