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.
Haussmann's renovation of Paris
The third phase of renovations was proposed in 1867 and approved in 1869, but it faced much more opposition than the earlier phases. Napoleon III had decided to liberalize his empire in 1860, and to give a greater voice to the parliament and to the opposition. The Emperor had always been less popular in Paris than in the rest of the country, and the republican opposition in parliament focused its attacks on Haussmann. Haussmann ignored the attacks and went ahead with the third phase, which planned the construction of twenty eight kilometers of new boulevards at an estimated cost of 280 million francs.