Secrets Beneath Giza and the Lost Sphinx - Filipo Biondi - Billy Carson

An aerospace engineer claims sensitive data has been leaked, revealing vast underground structures beneath the Giza Plateau, including shafts descending approximately one mile and huge voids 640 meters deep. Using modified SAR Doppler technology that detects acoustic vibrations, the research suggests interconnected tunnels and chambers under both the pyramids and the Sphinx, possibly forming a giant machine. The engineer proposes a project to clear debris from shafts to access this hidden underground city, calling for funding and support.