Researchers report an astonishing find in the Baltic Sea: Apparently there are indications of further discoveries. Stone wall is 971 meters long and is located ten kilometers from Rerik on the southwestern edge of the marl ridge in a water depth of 21 meters on the bottom.
The structure consists of 1,673 stones the size of tennis or football, which are connected by a few large boulders to form a wall up to one meter high. The researchers even assume that the stone wall was built around 12,000 years ago.