The 300,000-tonne iceberg that briefly turned the British Isles into a "series of islands"

This is a weird one. In 1570, an iceberg about the size of Wales was spotted in the English Channel, and there are some records of it drifting as far as the Thames. This happened during the "Little Age of Ice" - a period of cooling that lasted from the 1550s to the 1630s. <br><br>There's some pretty good evidence for this having actually happened - there's some records of "green ice" from the time that suggest it was plant-covered. Also, a bunch of vineyards were wiped out across northern Europe in the late 1500s - it was originally put down to disease or war, but some people have suggested that the cold weather killed off the vines that had been imported from Mediterannean regions and weren't entirely hardy. <br><br>I've also heard that if you zoom in on Google Earth, you can find bits of the seafloor that are a few metres higher than the rest, and that's where the ice would've melted. But I don't know if that's actually true.