Ground-Penetrating Radar Showing Ancient Civilizations by Paul White Since the declassification of the new ground-penetrating radar 2 years ago, the most staggering data has emerged of complex and labyrinthine underground systems in various parts of the world. At places like Guatemala in the South Americas, tunnels have been mapped under the Mayan pyramid complex at Tikal, which extend a full 800 kilometres to the opposite side of the country. Investigators remarked, it was possible to understand how half […] Read More
