You stand there in awe, over-powered by their sheer magnificence. No wonder we've been intrigued, totally baffled for more than 4000 years. And of all Egypt's pyramids, the Great Pyramid at Giza is by far the most mysterious. It's so imposing, so perfect you can see why many insist it couldn't possibly be the work of mere mortals. It has to be a creation of the gods, either that, or aliens. But at last it seems this ancient riddle has been solved. There's one man who reckons he's figured it all out. And he's willing to share his amazing discovery with us. To take us to the very heart of the mystery, deep inside the Great Pyramid, where very few have ever been (2007). WATCH more of 60 Minutes Australia: https://www.60minutes.com.au/ LIKE 60 Minutes Australia on Facebook: https://www.facebook.com/60Minutes9 FOLLOW 60 Minutes Australia on Twitter: https://twitter.com/60Mins FOLLOW 60 Minutes Australia on Instagram: https://www.instagram.com/60minutes9 For forty years, 60 Minutes have been telling Australians the world’s greatest stories. Tales that changed history, our nation and our lives. Reporters Liz Hayes, Allison Langdon, Tara Brown, Charles Wooley, Liam Bartlett and Sarah Abo look past the headlines because there is always a bigger picture. Sundays are for 60 Minutes. #60MinutesAustralia