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
Water is actually naturally blue.
48
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
Two dogs were among the Titanic survivors.
262
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
There was once an undersea post office in the Bahamas.
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