| The work of 20th-century American architect Louis Sullivan was influenced by the movement known as Art Nouveau. This picture shows the front facade of the Carson Pirie Scott department store in Chicago (1899-1904), designed by Sullivan. The elaborately decorative cast-iron is characteristic of the architect’s love of detail. Above the first two floors, the design of the remaining twelve is a contrast in simplicity, with geometric windows evenly spaced within the structural steel skeleton. |