Fallingwater: Frank Lloyd Wright, reinforced concrete stone, Ohiopyle, (Bear Run), Pennsylvania, 1934, 1938, 1948. "...[Wright] sends out free-floating platforms audaciously over a small waterfall and anchors them in the natural rock. Something of the prairie house is here still; and we might also detect a grudging recognition of the International Style in the interlocking geometry of the planes and the flat, textureless surface of the main shelves. But the house is thoroughly fused with its site and, inside, the rough stone walls and the flagged floors are of an elemental ruggedness."
Sainte Chapelle: Louis IX, king of France, Rayonnant (French Gothic) 1246-48, Paris, France. FYI: “Windows are a divine feature, if utilized properly will take your breath away”. the Rayonnant reduced the masonry structure of the churches to a tenuous skeletal system supporting vast expanses of traceried glass The word Rayonnant itself refers to the radiating stone spokes of the enormous rose windows of the cathedrals.