More than 1,600 Binishells System 1 domes have been built in 23 countries. That's more domes built in this way than with any other construction system in history. Invented in 1964 by Dr. Dante Bini, this innovative system was the first to utilize air pressure to lift and shape reinforced concrete shell structures poured at ground level. Domes of up to 40m (120ft.) have been raised in less than one hour using less than 1 PSI of pressure. Applications have ranged from high end homes, to schools, silos, military facilities, sports facilities and a wide variety of purposes.