Built with Air Shafts:
While still on the subject of incredible discoveries, no one knows why the Great Pyramid is the only Pyramid that is built with airshafts. These air shafts were designed to align with the stars, which is a whole new mystery. What is more incredible is how the ancient Egyptians cut such precise shafts without advanced tools? And where did they get the knowledge to place them in alignment with the stars? More mysteries.
Source: Flickr
In determining the reason for the shaft design, some reference ancient Egyptians’ reverence for the afterlife. They reason that the star alignment shafts have to do with sending the dead to the afterlife. More radical conspiracy theorists suppose that the shafts were used to signal aliens.