On Friday we revealed Francois Perrin’s precariously-situated house, a sleek stack of glass boxes embedded into the Hollywood Hills on a concrete base. Terrain aside, the project is stunning for its views of the city, for its glassy connection between indoor and outdoor space, and for its minimal lines. Perhaps even more amazing, though, is how the house was built in the first place, requiring crews to literally move mountains and dangle from cables off the side of a ravine. To reveal the process beneath the building, AN compiled a slideshow of the work in action.