Ancient CivilizationsScientists who made ‘vast city’ discovery beneath Egypt’s Giza pyramid claim it was built by a long-lost advanced civilization Posted on April 3, 2025 by Administrator A purported ‘vast underground city’ in Egypt is tens of thousands of years older than the Giza pyramids, scientists have shockingly claimed. If true, it would turn Egyptian – and human – history on its head, though independent experts have called it ‘outlandish’ and ‘crazy talk.’ Last week, researchers in Italy presented bombshell research which claimed to have discovered multi-thousand-foot tall wells and chambers underground beneath the Khafre Pyramid.