Ancient CivilizationsScientists who discovered ‘vast city’ underneath Egypt’s Giza pyramid reveal new secrets about mysterious structures Posted on March 26, 2025 by Administrator The mystery of an ‘underground city’ beneath Egypt’s pyramid deepens as scientists have shared new details about what may lie more than 4,000 feet below the surface. A team of Italian researchers claimed they uncovered giant vertical shafts wrapped in ‘spiral staircases’ and a massive limestone platform containing two enormous chambers with descending channels resembling pipelines.