The 64-year-old presenter will be seen investigating conspiracy theory as part of a new show.
Walsh was always interested in the structure of Giza's grave, as he was a child, as he was a child, as Walsh was the great of Howard Carter, who found Chutanhamun's grave.
As part of the Sky History program, as a universe code for Bradley Walsh: Egypt, he traveled to the country after hearing that “the pyramids were not built at all by the ancient Egyptians,” and that “it was built by a race that died 4,500 years ago, or by someone else.”
Walsh added: “Before I arrive in Egypt, I think, this is great, and I prove that this is an alien.
“People say I'm a conspiracy theorist. I'm not. All I did was say, 'Maybe this'. And I needed to know what the truth was. ”
Walsh said that it is extremely difficult to get them on board “non-Ancient Egyptians built the pyramids.”
“The great thing about the great pyramid is that they began building the pyramid about 150 years before it,” he said.
“My expert guides, Meredith and Alto, showed us where the pyramid began about 150 years ago, about 150 years before the Grand Pyramid.
“If you go there, you see the evolution of the pyramid. It's terrible, it's hanging down to one side, so it's all trial and error.”
Walsh also seemed to suggest that he had stopped him, believing that being within the great pyramid could generate electricity.
He states: “Being deep inside the pyramid, I was expecting a lot of noise. I insisted that I think a great pyramid is a kind of power plant in itself.”
Walsh also stated it was a “surprising being” and discovered that Cleopatra VII, the lover of Egypt's final rulers, Mark Antony and Julius Caesar, died closer to modern times than the beginning of ancient Egypt.
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He states: “You can go online and get a lot of speculative information from people who have never been there, and they got it online in books and somewhere else.
“Well, if you're interested in pyramids, I hope people see this and go see it on their own. It certainly broadens their minds, so I hope they do – it also narrows it down to some extent in that you can see all the actual information laid out before you.”
The great pyramids of Giza were built over 4,600 years ago to house Kuf, the king of Egypt's fourth dynasty.
Bradley Walsh: Egyptian Space Code will air on March 18th at 9pm on Sky's history.