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.
Palais Garnier
The opera was constructed in what Garnier himself is said to have told the Empress Eugenie was "Napoleon III" The Napoleon III style was highly eclectic, and borrowed from many historical sources; the opera house included elements from the Baroque, the classicism of Palladio, and Renaissance architecture blended together. These were combined with axial symmetry and modern techniques and materials, including the use of an iron framework, which had been pioneered in other Napoleon III buildings, including the Bibliotheque Nationale and the markets of Les Halles.