Researchers using ground-penetrating radar (GPR), along with electrical resistivity tomography (ERT), have found what they describe as an ‘L-shaped anomaly’ in the western cemetery near the Great Pyramids of Giza in Egypt.

The international team of researchers led by Tohoku University’s Motoyuki Sato claimed to have found previously undetected structures approximately 6.5 feet from the surface.

The structures were discovered beneath a royal graveyard near the centuries old Great Pyramid in Egypt. The team of researchers suspects that the structures are man-made and they were backfilled after construction.

According to them, while the area of the anomaly has been more or less established, the “structure and location were unclear.”

According to the paper published by the researchers, “The shallow structure, which is L-shaped in the horizontal plane, 10 m by 10 m, was clearly imaged by GPR.”

The shallow structure seems to be filled with sand, meaning it was likely backfilled after construction. The researchers say that it might have served as an entrance to the deeper structure.

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