Great Pyramid
- Episode aired Apr 13, 2020
- TV-G
- 22m
![Secrets Unlocked (2019)](https://m.media-amazon.com/images/M/MV5BOTc0NjczZTgtYzE1NC00ZjNhLWFmMzAtOWM5ODJlYmRhNWJkXkEyXkFqcGdeQXVyNzI4MDMyMTU@._V1_QL75_UY281_CR1,0,190,281_.jpg)
An ancient diary and radical new theories are helping to crack the code of how the Great Pyramid of Giza was built.An ancient diary and radical new theories are helping to crack the code of how the Great Pyramid of Giza was built.An ancient diary and radical new theories are helping to crack the code of how the Great Pyramid of Giza was built.