Filippo Biondi revealed the discovery while speaking on the Matt Beall Limitless podcast on Thursday. According to Daily Mail - Home, Biondi described finding precise geometrical correlation in the symmetry of the site. He said lines drawn from the pyramids to the known Sphinx point to an identical mirrored location where a buried structure is believed to lie. The Dream Stele, positioned between the paws of the Great Sphinx, appears to depict two sphinx figures, adding to the geometric evidence.
Biondi said using satellite radar technology, data points to a massive structure concealed beneath a 180-foot-high mound of hardened sand composed of solidified sand rather than natural bedrock. Preliminary scans show vertical shafts and passageways strikingly similar to those already found beneath the original Sphinx. Italian researchers in 2025 claimed to have uncovered massive underground structures beneath the Giza Plateau. According to Daily Mail - Home, Biondi described an underground mega structure beneath the Giza Plateau, hinting at an extensive underground complex.
New footage revealed dozens of deep shafts surrounding the mysterious mound at Giza. The video documented more than 100 shafts clustered around the site in the northwest corner of the plateau, near the western cemetery of Giza. Trevor Grassi of the Archaeological Rescue Foundation captured footage showing dozens of square shafts carved into bedrock, many extending deep underground but filled primarily with sand. According to Daily Mail - Science & Tech, Grassi described endless shafts all over the place going straight down, all blocked with sand. The footage is among the first to document the full perimeter of the site.
Grassi said the unusually dense concentration of shafts surrounding the mound raises new questions about what may lie beneath the surface. According to Daily Mail - Science & Tech, Biondi described having a confidence of about 80 percent in announcing the discovery. Grassi emphasized that many of the shafts appear to extend more than 100 feet underground. Researchers say the location warrants further investigation given the number of openings and the underground anomaly previously detected.
However, no definitive proof of a second sphinx has been discovered. The exact nature and purpose of the underground structure detected beneath the mound at Giza remains unknown, as does how the shafts surrounding the mound relate to the alleged underground structure. Zahi Hawass, Egypt’s former minister of antiquities, has dismissed similar claims in the past. It is unclear what Egyptian authorities, such as the Ministry of Antiquities, officially say about these claims or what further investigations or excavations are planned to verify these findings.