Is there a hidden DOORWAY in Great Sphinx of Giza? Mystery over two Ancient
Egypt relics
https://www.dailystar.co.uk/news/weird-news/764057/Ancient-Egyptian-relic-missing-reveal-truth-behind-great-sphinx-age
You might want to look through what I believe is the book mentioned in this
article:
Archive.org results for Operations Carried on at the Pyramids of Gizeh in
1837
https://archive.org/search.php?query=Operations%20Carried%20on%20at%20the%20Pyramids%20of%20Gizeh%20in%201837
Ancient Architects' Matt Sibson also has some interesting videos on the
Sphinx and the gate to the underworld beside the Sphinx (under the Coptic
cemetery):
By the way, just noticed he released a new channel called "Space & Planet"
that might prove interesting for us in this group:
Related thread: Amazing pyramids — Related to the March 2019 'Amazing pyramids' discussion