1. Fallingwater or Kaufmann Residence is Frank Lloyd Wright's house built in 1935 over a waterfall in rural Pennsylvania.
2. Wright designed the house with horizontal and vertical lines and spaces that bring the natural surroundings inside. Notable features include cantilevered balconies and a staircase leading to the waterfall.
3. The house uses local stone and wood in its intrinsic construction, with furnishings in a triadic color scheme and monochromatic brown walls, ceilings and floors. However, the bold concrete design experienced deflection issues from the beginning.