International Exhibition of Modern Decorative and Industrial Arts of the most modernist, was the tower of the Tourism Pavilion by Robert Mallet-Stevens. The tower's sleek lines and lack of ornament were an announcement of the international style that would replace Art Deco. In 1929 Mallet-Stevens led the creation of The French Union of Modern Artists which rebelled against the luxurious decorative styles shown at the Exposition, and, along with Le Corbusier, demanded architecture without ornament, built with inexpensive and mass-produced materials. Just inside the main entrance of the Exposition on the Place de la Concorde was the main promenade of the Exposition, with the pavilions of the major
Napoleon III style not an admirer of the Empire, as "the opulent bastard child of all the styles.". The best example was the Opéra Garnier, begun in 1862 but not finished until 1875. The architect was Charles Garnier (1825-1898), who won the competition for the design when he was only thirty-seven. When asked by the Empress Eugénie what the style of the building was called, he replied simply, "Napoleon III." At the time, it was at the time the largest theater in the world, but much of the interior space was devoted to purely decorative spaces: grand stairways, huge foyers for promenading, and