This national historic landmark was completed in 1951, when Wright was 84, and has been hailed as one of the world’s most innovative examples of church architecture. In addition to the original Usonian-style meeting house, with its pitched copper roof, deep-red concrete floor and iconic prow of interlacing wood and glass, an addition by William Wesley Peters completing Wright’s original, unfinished design was added in 1964. The Taliesin Associated Architects-designed second addition (1990) was mostly deconstructed when the LEED-certified, Gold Atrium addition by Kubala Washatko Architects was added in 2008.