There are 10 Gizeh Stelae in total, and they are part of the "The Idol of Ra" main quest, and a continuation side quest, a discovery called "Belongs in a Museum".
Gizeh Stelae
Locations on Gizeh
1
Amon Stele
In the room behind the locked Wehrmacht Door.
2Construction Stele
It's a reward form completing the "A Savage Predicament" fieldwork.
3Death Stele
You can get here through the Underground Entrance (Sphinx Temple Ruins).
4Giant Stele
You can get here through the Underground Entrance (Giant Stele).
5Harvest Stele
Lock combination is: 0805. You can find it in the Code Letter.
6Light Stele
7Protector Stele
8Ra Stele
9Sebek Stele
10Victory Stele
Inside the underground tomb accessed via the Underground Entrance. Use the Lighter to burn the hay covering the crawl space in the first chamber.
