In the heart of London there's a hidden river. The River Fleet was bricked over to form a covered sewer, allowing millions of London residents to live in just a few square miles without serious disease issues.
This clip was taken from a program called World Beneath Our Feet
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Негізгі бет Ойын-сауық Disgusting 'Fatberg' Found In London Sewer | World Beneath Our Feet | Earth Science
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