A strange wall submerged in the Baltic Sea may be the oldest man-made megastructure in Europe

Tech Insider : Travel
hunting wall Baltic Sea
An ancient hunting wall was discovered under the Baltic Sea.

Philipp Hoy, University of Rostock

A giant tsunami may have wiped out Stone Age populations in Britain 8,200 years ago, and scientists say a similar natural disaster could hit the islands again

Tech Insider
A map with a red arrow pointing to the area off the coast of Norway where the Storegga slide occurred over 8,000 years ago
A landslide near Norway caused a tsunami over 8,000 years ago that created giant waves in the North Sea and beyond.

Rainer Lesniewski/iStock via Getty Images Plus

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