Why The Air Shafts?
The Great Pyramid is the only pyramid that has air shafts. Here is something to boggle your mind- these shafts are angled in correspondence with the celestial bodies (yes, we kid you not). How did they do it? And WHY did they do it.
Hyperbolic theories have been made regarding this discovery. Involvement of aliens in the building of the pyramids has not been completely ruled out by some scholars. So they believe that the alignment of the air shaft in accordance with the celestial bodies somewhere reflects the hand of some powers greater than human.