Ancient Egyptians created pyramids by piling up rubble on the inside and attaching bricks on the outside later, according to a new theory proposed by a British engineer.

Peter James, an engineer at Cintec International in Newport, South Wales, has stunned archaeologists by claiming their theories on how pyramids were built are wrong.

According to the currently accepted belief, pyramids were built with giant blocks carried up huge ramps.

James said such a thing would be impossible as the ramps would have had to have been at least a quarter of a mile long to get the right angle for the bricks to be taken to such great heights, ‘Mirror Online’ reported.

“Under the current theories, to lay the two million stone blocks required the Egyptians would had to have laid a large block once every three minutes on long ramps,” said Mr. James, who has spent the past 20 years studying pyramids.

“If that happened, there would still be signs that the ramps had been there, and there aren’t any,” he said.

Mr. James has assisted in reinforcing burial chambers in the 4,600-year-old Step Pyramid and the Red Pyramid.

According to ‘ibtimes.co.uk’, inside the Step pyramid in Egypt, his team discovered that a massive tonnage of small stones was being held up only by the trunk of a palm tree thousands of years old.

The engineer believes that the inside of the pyramids are made of small, easily handled blocks and that they were built from the inside out — not the outside in.