Well, if you reverse the whole map of Egypt, you get 2 triangles with their bases to the south, one that represents the Delta, whose base faces the medi, and one that represents Sinai, whose base also faces the medi a lil to the west from the 1st triangle. Now, we have a traignle whose 3 sides are 'salty' and another one with only one salty side. Take a look at Saqqara Pyramid. Sept for its base, the building doesn't go straight, there are like, zigzags featuring it. The same kind of zigzags can be monitored across the 2 branches of the Nile in a high-resolution map of Egypt. Saqqara walls ain't so "thick" indeed. Neither is any of the 2 Nile branches, which represent the 2 sides of the 1st triangle mentioned earlier. Unlike Saqqara, the 3 other pyramids are outstandingly "straight" concerning walls. Taking a glance at the Red Sea (still flipped vertically), some sort of similarity would emerge between the 2 bays holding Sinai penninsula and the sides of any of the 3 pyramids. The way the builders have made sun reflect on the pyramids' walls is very close to the way sunrays are reflected on sea water, which's a lil different from how they reflect on river water, due to the velocity of waves in each. Let's get to figure out the bases of the pyramids. Saqqara pyramid has a flat base. So does the 1st triangle, the Delta. As for the 3 pyramids, their bases (floors) ain't any flat, although the area where all of them were constructed is the same, a flat desert where you must lay concious hands to change the surface (make it high here and low there). The 2nd triangle, Sinai penninsula, doesn't have a flat base either. I believe, when Saqqara pyramid was built, the Egyptian eye was being kept on the Delta, whereas when the 3 pyramids were built, the Egyptians drifted their sight to Sinai.

In Egypt, wharever you reverse tells you a secret.