Stone age wall found in Baltic Sea may be ‘Europe’s oldest megastructure’
by Alexander Butler
Feb 20, 2024
1 minute
A mysterious 10,000-year-old wall discovered at the bottom of the Baltic Sea might be Europe’s “oldest megastructure”, researchers have said.
The structure, made of around 1,400 smaller stones and 300 larger boulders, was discovered along the coast of .
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