NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The Caspian Sea is also classed as the world's largest lake.
52
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
There was once an undersea post office in the Bahamas.
241