About great pyramid.

 Great Pyramid has inspired theories, both conspiratorial and historical, for centuries, and a new discovery of a mysterious void has added to the mystique. The void is 153 feet long and 26 feet tall, and it lies above the corridor leading to the burial chamber of Khufu, an Egyptian pharaoh.

What is in it.....

Is the void one or several rooms? What's inside it? What purpose did it serve? These are questions that remain to be answered.

Archaeologists have yet to access the void in person. That's because it was found using muon radiography, a type of imaging that uses subatomic particles to peer through walls or solid structures.

Pyramids are not only in one place on the planet. While Egypt is the first place people think of when they hear the word pyramid, Sudan has the most. Sudan is the third largest country in Africa with 255 Nubian pyramids in total. Only fourteen of these pyramids are for Sudanese queens that were named warrior queens to the locals.

Many people are unaware that these magical formations were left behind by Nubians in the 6th century BC. Nubians were an advanced group of people that occupied Egypt before leaving Sudan. They built their pyramids like the Egyptians with a circular sun at the top which symbolizes solar discs designed for the elite. There has been speculation that the Nubians stole the idea of pyramids from the Egyptians as a burial location for 21 kings and 52 queens
Dead body are rounded by cloths strip  and kept in it.