Support WBURScientists scanning the seafloor discover a long-lost Stone Age 'megastructure'Play03:34Download AudioAri DanielFebruary 22, 2024 ShareA 3D model of a short section of the stone wall. The scale at the bottom of the image measures 50 cm. (Photos by Philipp Hoy, University of Rostock; model created using Agisoft Metashape by J. Auer, LAKD M-V)