Libya/Tripoli/Gaddafi. Japan's Mysterious Pyramids (Yonaguni) - FULL VERSION History Channel Documentary. Wat is er gebeurd in Libië? Greek Myths. Underwater Structure Thought To Be Over 14,000 Years Old & Man-made 12,000 Years Old Unexplained Structure Top 10 Civilizations That Mysteriously Disappeared. Throughout our history, most civilizations have either met a slow demise or were wiped out by natural disasters or invasion.
But there are a few societies whose disappearance has scholars truly stumped: 10. The Olmec One of the first Mesoamerican societies, the Olmec inhabited the tropical lowlands of south-central Mexico. The first signs of the Olmec are around 1400 BC in the city of San Lorenzo, the main Olmec settlement which was supported by two other centers, Tenochtitlan and Potrero Nuevo.