Johnson Wax Headquarters
In the Great Workroom, the columns expand from 9 inches (23 cm) in diameter at the bottom to "lily pads" 18 feet (5.5 m) in diameter at the top; skeptical building inspectors required that a test column be built and loaded with twelve tons of material. After the test column proved capable of supporting the specified load, Wright had the load progressively increased. Only at sixty tons load did any crack appear.
