Napoleon III style
The Napoleon III style was a highly eclectic style of architecture and decorative arts, which used elements of many different historical styles,and also made innovative use of modern materials, such as iron frameworks and glass skylights. It flourished during the reign of Emperor Napoleon III in France (1852–1871) and had an important influence on architecture and decoration in the rest of Europe and the United States. Major examples of the style include the Opéra Garnier in Paris by Charles Garnier (1862–71), the Bibliothèque nationale de France. and the Church of Saint Augustine (1860–1871). The architectural style was closely connected with Haussmann's renovation of Paris carried out during the Second Empire; the new buildings, such as the opera, were intended as the focal points of the new boulevards.
Château de Compiègne
The result is an example of First French Empire style (1808-1810), though some traces of the earlier décor survive. The writer Auguste Luchet remarked that "Compiègne speaks of Napoleon as Versailles does of Louis XIV". From 1856 on, Napoleon III and Eugénie made it their autumn residence, and redecorated some rooms in the Second Empire style.