Think of an umbrella. The metal spines start at a central point and flare outwards towards a stiffened fabric edge. At that taut outer edge sit the faceted walls of glass. The metal umbrella spines are the mammoth steel beams seen in the photos supporting the house and radiate back to a central point. That central point is a curved steel and glass staircase stretched like a long slinky up through all three floors and wraps around a cylindrical teak elevator.