Completion of Fallingwater

Frank Lloyd Wright completed Fallingwater near Mill Run, Pennsylvania in 1937, a weekend house for the Kaufmann family of Pittsburgh built directly over a waterfall on Bear Run rather than facing it from a conventional distance, with cantilevered concrete terraces extending dramatically out over the falling water. Wright designed the house to integrate structure and site so completely that it is often cited as the clearest built expression of his organic architecture philosophy, using local sandstone for the vertical elements to root the house in its setting while the smooth cantilevered planes provided sharp contrast. Widely published from the moment of its completion, Fallingwater is regarded as one of Wright's masterworks and one of the most celebrated houses of the 20th century, later opened to the public as a museum.