Scientists who claimed to have found ‘vast underground city’ beneath Egyptian pyramid share new major details

Scientists have shared new details about a mysterious 'underground city' said to be sitting beneath Egypt's Khafre Pyramid.

The Khafre Pyramid is one of three Ancient Egyptian Pyramids of Giza.

Using radar pulses sent underneath the pyramids, Italian researchers Corrado Malanga, Filippo Biondi, and Armando Mei have claimed they've discovered 'vertical cylinders' some 2,000 feet below the ground, allegedly featuring chambers, pipelines and even a water system.

The cylinders reportedly converge into cube-shaped structures, which measure approximately 80 x 80 metres.

In a statement released this weekend - translated to English - Malanga, from the University of Pisa, said: "When we magnify the images [in the future], we will reveal that beneath it lies what can only be described as a true underground city."

The research has also suggested that the pyramid could conceal 'undiscovered secrets, notably the fabled Hall of Records'.

The Hall of Records is said to hold documents, scrolls and other ancient materials about Ancient Egypt and the 'lost continent of Atlantis'.

The team explained that they sent radar signals below the pyramid, before converting the signals that bounced back into sound waves.

They were then able to use these sound waves to allegedly establish the underground structures.

"We did calculations and saw that the Khafre Pyramid is incredibly heavy, and to hold it up, it needs a solid foundation. Otherwise, it will sink," added Malanga.

SAR Scan of Khafre Pyramid Shows Huge Underground Structures pic.twitter.com/lr0A5cpO1p

— Greg Reese (@gregreese) March 18, 2025

"... The readings were completely consistent, ruling out any chance of misinterpretation due to sound reflections.

"Since each satellite observes from a different angle, their results must align for us to consider the data reliable.

"If something appears in one satellite's scan but not the other's, we know it is a false signal or an artifact."

However, experts have raised doubts over the claims, with Professor Lawrence Conyers, radar expert at the University of Denver, explaining that the idea of an 'underground city' is a 'huge exaggeration'.

He told Dailymail.com that 'the Mayans and other peoples in ancient Mesoamerica often built pyramids on top of the entrances to caves or caverns that had ceremonial significance to them'.

Meanwhile, Dr Zahi Hawass, Egypt’s former minister of antiquities has rubbished the research, calling it 'completely wrong'.

Speaking to The National, he said the techniques used were 'neither scientifically approved nor validated' explaining that in all the decades of studies undertaken, no evidence of anything more than 'small voids' has been revealed.

“The claim of using radar inside the pyramid is false, and the techniques employed are neither scientifically approved nor validated,” he said.

While Malanga and Biondi published a paper about their work in 2022, it does not appear to have been peer-reviewed.