Saudi crown prince has wild idea: twin, mirror-faced skyscrapers traversing 75 miles. (Page 2/2) Valkrie9 JUL 30, 04:05 AM The future, beginning in Saudi Arabia. Solar powered heat-exchangers for air conditioned comfort, a huge contract. Surely, they will use the new fangled synthetic limestone composite, like the builders of the Giza Pyramids . Geopolymers Limestone Valkrie9 JUL 30, 04:13 AM They will conclude that they dragged the gigantic blocks by teams of slaves. Yeah, sure, that's how Napolean's stonemasons were convinced that was the method used. Literally standing before the Great Pyramid mouths agape in awe, ' C'est incroyable ! c'est impossible ! '.