Pantelleria Vecchia Bank Monolith

The Pantelleria Vecchia Bank Monolith is a twelve-metre long, fifteen-tonne stone of apparent Mesolithic human fabrication, speculated to have had use as "a lighthouse or an anchoring system," which was discovered forty-meters underwater in the Pantelleria Vecchia Bank of the Strait of Sicily, sixty kilometres south of Sicily, a region that was submerged sometime around 8000-7500 BC. The monolith is now broken into two parts and has three regular holes, two on the sides of the stone and a third passing through the stone from part to part.