Massive Stone Wall Built More Than 10,000 Years Ago Found Hidden Beneath the Baltic Sea
Researchers have discovered a submerged, 10,000-year-old massive stone wall that is one of the oldest man-made megastructures ever found.
Christopher Plain is Lead Science Writer at The Debrief. A science fiction and fantasy novelist of many years, you can follow and connect with him on X @plain_fiction, learn about his books at plainfiction.com, or email him directly at [email protected].
