Again, check Babylonian star maps and Ancient Egyptian star maps.

I've seen arguments that the three grand pyramids of Giza are situated like this as an earthly reflection of Orion's belt. The arguments goes that three stars were closer to the horizon all the time back, and it looked different. Read about the Orion mystery in Ref to the pyramids (or watch a video).

The point of the mystery that the locations of the pyramids only makes sense if we trace the locations of Orion stars back in time when they were built. In fact, some even use this argument to put older dates of building the pyramids. Waaaay before the conventional dates (which is a rabbit hole on its own, you'll enjoy following, trust me)