The archaeological site – located on the outskirts of Cairo, Egypt – includes three pyramids and the Great Sphinx.
The Khufu, Khafre and Menkaure can all be found in the Western Desert, approximately 9km (5.5 miles) from the Nile river.
Listed as one of the Seven Wonders of the World, the huge structures date back to roughly 2,570BC, according to the history books.
But new evidence could prove they were actually built more than 5,000 years earlier than records suggest, according to historian Matt Sibson.
“But there is no evidence that Egyptians actually built them”Matt Sibson
“The Egyptians may have discovered these pyramids and had no idea what they even were,” he told Daily Star Online.
“There is no proof they went inside – they did not leave their carvings or anything, which is odd.
“When people finally went inside in the 9th century they reported finding nothing.
“So they are probably older structures than textbooks say.
“But there is no evidence that Egyptians actually built them – I still think they just tried to pass it off as their own.”
Matt bases his evidence on a discovery he made on a wall around the second structure – the pyramid of Khafre.
He told Daily Star Online: “The wall looks flat and natural, but if you look at one corner in the southwest, it looks like it has been plastered over with clay.
“And where the smooth finish dies away, you’re left with a very, very weathered wall.
“The wall is part of the pyramid’s foundation, it is the first thing cut, so we know that had to have happened first.”
And Matt, from Leicester, believes the hard work could have actually been completed some 5,500 years earlier.
He explained: “We can see rain erosion on the wall, but geologists say there was no rain heavy enough to cause such damage at the time (2,570BC).
"It was around 5,500 years earlier – roughly 8,000BC – where the rain matched that needed for the erosion."
The 36-year-old researcher shared his incredible finding with his 165,000 strong fanbase on his YouTube channel.