The Caspian Sea is also classed as the world's largest lake.
52
It's impossible to sink in the Dead Sea without equipment!
72
The Titanic is about as long as the Empire State building is tall.
174
Two dogs were among the Titanic survivors.
262
There was once an undersea post office in the Bahamas.
241
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
Water is actually naturally blue.
48
Jellyfish as a species are actually older than dinosaurs and sharks.
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