What is the frame of the Great Pyramid of Giza?

The frame of the Great Pyramid of Giza, also known as the Pyramid of Khufu, is primarily constructed from limestone blocks, with the core made of rougher limestone and the outer casing originally composed of highly polished Tura limestone. The pyramid's structure has a square base, measuring about 230 meters on each side, and rises to a height of approximately 146.6 meters. Its design features a precise alignment with the cardinal points and a complex internal layout of chambers and passageways, showcasing the advanced engineering skills of the ancient Egyptians. Over time, much of the outer casing has been removed, revealing the rough inner core.