NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
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
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The Titanic is about as long as the Empire State building is tall.
174
The time interval from first sighting of the iceberg that sank the Titanic to impact was a little over 30 seconds.
105
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Two dogs were among the Titanic survivors.
262