The Caspian Sea is also classed as the world's largest lake.
52
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
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
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
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