Last year thermal scanning identified a major anomaly in the Great Pyramid, sparking a debate over whether there was a long-running network of tunnels hidden away inside.
But now the mystery has been answered as the Ministry of Antiquities announced on Thursday that 'two anomalies' were found in the pyramid built under King Khufu.
They are now looking to conduct further tests on the 146m-high monument to determine their function, nature and size.
Read more and watch the video at http://www.mirror.co.uk/news/weird-news/two-mysterious-secret-chambers-discovered-9064891.