While many of the country’s most impressive cathedrals, buildings, and houses reside in major metropolitan areas, one of architect Frank Lloyd Wright’s (1867–1959) most notable works is in Mill Run, located in Pennsylvania’s Laurel Highlands area, 75 miles southeast of Pittsburgh. The Kaufmann family, who owned and operated Pittsburgh’s largest department store, commissioned Wright in 1935 to design their vacation house along a stream and over a waterfall. This became known as Fallingwater.
Wright realized for the Kaufmanns a 9,300-square-foot house, of which 4,400 feet are terraces. Two terraces are dramatically cantilevered up and over a 20-foot waterfall. Local craftsmen quarried native sandstone and other natural materials from the property. By 1938, the one-of-a-kind house, integrated into the natural rock ledges of the wooded landscape, was completed….