NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The Caspian Sea is also classed as the world's largest lake.
52
The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.
476
There was once an undersea post office in the Bahamas.
241
Water is actually naturally blue.
48
The North Atlantic gets 2.5 centimetres (1in) wider every year.
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