Very few things on our planet attract as much legend, folklore, myth and outright fascination as the pyramids. The ultimate achievement of Ancient Egypt, they've stood in place for thousands of years, and we still can't say for sure how anybody could possibly have built them. Inevitably, that leads to some people believing it must have been aliens.
If it was aliens, they'll have come from that incredible field of stars above the landscape, captured on an exceptionally clear night sky. We call our galaxy the Milky Way for obvious reasons, and the Egyptians thought of it in similar terms. In the legends of the Ancient Egyptians, the milky pattern across the sky literally came from cow-headed goddess named Bat, who was the god of fertility. The real, but less interesting, reason for the appearance of the milky pattern is that the sky contains millions of stars, packed so tightly together than they appear to form one whole pattern, dusty and sparkling.