Second Sphinx Claim in Egypt Fuels New Debate Over Alleged Underground “Megastructure”

A fresh wave of speculation is sweeping across the archaeology world after researchers claimed new scans near Egypt’s Giza Plateau may point to the presence of a second sphinx-like formation and a larger underground network beneath the site. The claim, which has gone viral online in late March 2026, stems from scan interpretations tied to the Khafre Research Project, whose members say subsurface imaging revealed geometric anomalies, deep chambers and connected passageways below the sands near the Great Sphinx and surrounding pyramid complex.

According to reports on the latest scan-based theory, the researchers used Synthetic Aperture Radar, or SAR, to model what they believe may be structured features underground. In this version of the claim, the so-called “second Sphinx” has not been excavated or visually confirmed; instead, it is being described as a sphinx-like or mirrored formation inferred from the scan data. Supporters of the theory say the broader findings suggest the possibility of a coordinated subterranean complex beneath Giza.

The dramatic language surrounding the discovery is being met with significant skepticism. Similar claims from the same circle of researchers about vast hidden structures beneath Giza drew widespread attention in 2025, only to be challenged by archaeologists and outside experts who said the evidence did not meet the threshold for a confirmed archaeological discovery. AFP reported last year that experts rejected viral claims of giant underground structures beneath the pyramids, saying the assertions were not backed by established archaeological proof.

That skepticism is especially important because Egypt has seen real, scientifically validated scan-based discoveries in recent years. The internationally recognized ScanPyramids mission, working under Egyptian authorities, used muon imaging and other non-destructive methods to confirm hidden voids inside the Great Pyramid, including the large “Big Void” announced in 2017 and a corridor near the north face that was further characterized in peer-reviewed research published in 2025. Those findings were backed by multiple detection techniques and published scientific work, setting a very different standard from viral claims that remain unverified by excavation or broad scholarly review.

For now, the “second Sphinx” story remains exactly that: a provocative hypothesis, not a confirmed discovery. No widely recognized official archaeological body has publicly validated the existence of a buried twin sphinx or an underground “megastructure” beneath Giza based on the March 2026 viral reports. Until independent review, corroborating evidence, and ideally excavation or on-site confirmation emerge, the claim is likely to remain suspended between scientific curiosity and internet-fueled mystery.