Rivers have always been vital to humanity. These freshwater channels link mountains to seas and are one of the most important sources of drinking water for all living things - at least on land. But rivers can have a dark side too and there are many things lurking in them that you might not expect! From the ancient tunnel system to the centuries old shipwreck that rose from its grave, here are the 20 Strangest Things Found In Rivers. ► For copyright matters please contact us: OfficialAmerikano@hotmail.com