The Pyramids were not laid out willy-nilly on the Giza Plateau. Each side of
each of the three Pyramids lines up precisely east-west or north-south. It's a
bit of a mystery how the ancients achieved such a perfect alignment,
considering they did not have the magnetic compass at their disposal. The
Pyramids' proportions are just as exacting. For example, the difference between
the Great Pyramid's longest and shortest sides, which average 755.5 feet along
the base, is but seven inches.
Each of the Pyramids is
perfectly proportioned. This is the Khafre Pyramid from its southwest
corner.
As you scroll along this image, which was shot from the desert a few miles
south of the Pyramids, notice how the three structures—those of Menkaure,
his father Khafre, and his grandfather Khufu—line up perfectly along their
righthand edges.