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
International Exhibition of Modern Decorative and Industrial Arts furnishings and paintings but these works, including the pavilions, were spare and modern. The modern architecture of Le Corbusier and Konstantin Melnikov attracted both criticism and admiration for its lack of ornamentation. Criticism focused on the 'nakedness' of these structures, compared to other pavilions at the exhibition, such as the Pavilion of the Collector by the "ébéniste"-decorator Émile-Jacques Ruhlmann. In 1926, shortly after the end of the Paris Decorative Arts exposition, The French Union of Modern Artists, a group which included Francis Jourdain, Pierre Chareau, Le Corbusier, and Robert Mallet-Stevens among others, fiercely attacked the style, which they said was