Well it depends on what sources you read. There are some fascinating stories from early Arab writers who mentioned strange things like lights that never extinguished. Fun to read.
What is known for certain in the historical record is a little more strange than is popularly known. Nobody was precisely sure where the actual entrance was.
That’s why they blew a hole in the side. That’s still the entrance used by visitors today.
The limestone casing stones were cut, polished, and installed with “optical” levels of precision, as scientists have described other granite features of ancient Egypt.
The original “door” to the pyramid swung open, and up, from the inside. When it was closed, it was invisible or impossible to detect from the outside. That’s amazing when you stop and think about it. Why did they do that?
There are some fascinating stories from early Arab writers who mentioned strange things like lights that never extinguished
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You have any linkable sources or books? Sounds interesting.
However, the version I related is the generally acceptable historical one.
“Lights that never went out” could have something to do with Chris Dunn’s analysis that they were used to generate some sort of electrical power, which was ended when some one used the wrong ingredients and caused an explosion in the ‘Kings’ Chamber’.
“Nobody was precisely sure where the actual entrance was.”
No, not precisely, though the general area of the entrance was well known since antiquity, even if it hadn’t been entered in centuries.
“When it was closed, it was invisible or impossible to detect from the outside. That’s amazing when you stop and think about it. Why did they do that?”
It is an interesting question, especially because the entrance was not really well hidden, all things considered. It is just about exactly where one would expect the entrance to be if you survey other pyramids that had already been opened and looted in antiquity. What good is a hidden door if you put it in the same spot everyone would expect the door to be?