What is the golden question mark of the Sphinx in the origin of Assassin's Creed?

The golden question mark of the original Sphinx in Assassin's Creed is a 12 constellation task.

The question mark displayed in the constellation is golden (the pyramid and other special locations also have the same question mark), so players can easily find it, and then the constellation task prompts them to return to this stone array for the plot.

The Sphinx in The Origin of Assassin's Creed:

According to the plot and the device to enter an underground space, it is best to start the pulse to collect the nearby sparkle (silicon dioxide). You can see this device when you enter the innermost part (the number of beams is the same as the number of constellations you have decrypted). Finally, the middle device, after starting (50 sparkling crystals are needed), begins to explore philosophy and complete the world view.