Lost CivilizationsHidden city built 140,000 years ago discovered at bottom of ocean Posted on May 28, 2025 by Administrator Buried beneath the sea off the coast of Indonesia, scientists have made a groundbreaking discovery that could rewrite the story of human origins. The skull of Homo erectus, an ancient human ancestor, was discovered over 140,000 years after it was first buried, preserved beneath layers of silt and sand in the Madura Strait between the islands of Java and Madura. Experts say the site may be the first physical evidence of the lost world, a prehistoric landmass known as Sundaland that once connected Southeast Asia in a vast tropical plain.