This is the step pyramid of Djoser at Saqqara, Egypt.
The passage with the columns lead to a huge deep shaft which has been cut right into the bedrock.
At the bottom of the shaft, there is a huge granite box which is made out of big monoliths, weighing 20 to 30 tons each. The smaller round plug-stone weighs already 3,5 tons.
No corpse or mummy has ever been found inside.
What could have been its real purpose?
https://t.me/InTheEndGodAlwaysWins/108260