Italian designer and architect Ettore Sottsass designed this Woodside, California, estate for David Kelley, founder and chairman of global design consultancy IDEO and the Stanford d.school. The 6,000-square-foot home consists of six connected pavilions, each maintaining their own unique shape, color, and material. Among these, the single-room office boasts an 18-foot barrel-vaulted ceiling. Painted a blue that falls somewhere between the imagination-provoking azure of the sky and the protective brightness of a "haint blue" southern porch, the arched space appears bigger than its square footage—the perfect spot to hatch Silicon Valley’s next big idea.