Fallingwater is a house designed by Frank Lloyd Wright in Pennsylvania. It is built directly over a waterfall, with cantilevered balconies extending over the falls. The interior incorporates natural materials like stone and wood, as well as simple furnishings, to bring the outside landscape into the home. A central staircase leads to views of the waterfall, which is a focal point of the house. However, the bold cantilevered concrete balconies experienced structural issues from the beginning.