What are the purpose of the little #holes on #top of the #Great #Pyramid at #Giza?
Oh you mean all these holes?

That big ugly one in the center held the French flag for a few years during the napoleonic era.

The square holes around the side were from a light show put on in the mid 20th century.

The bore hole near the bottom center left was done by 20th century Egyptologists who would use the core to determine the age of the pyramid, but their findings of around 26,000 were thrown out by the British museum, who put their date closer to 4000 years ago.

Other holes and damage has been made by thousands of climbers, scavengers, soldiers, and the ravages of time and erosion.

The limestone that used to cover the pyramid until only 800–1000 years ago and only remains at the top, can be found throughout Cairo in the gleaming eggshell white stucco on countless Islamic mosques and temples and towers.

This kind of repurposing is nothing new. The gleaming white exterior of the Vatican came from demolition of the limestone statues, walls, stairs, and first class seating of the coliseum.

Anyway, not all history is heroes.