As for modern and contemporary architecture, Strasbourg possesses some fine Art Nouveau buildings (such as the huge Palais des Fêtes and houses and villas like Villa Schutzenberger and Hôtel Brion), good examples of post-World War II functional architecture (the Cité Rotterdam, for which Le Corbusier did not succeed in the architectural contest) and, in the very extended Quartier Européen, some spectacular administrative buildings of sometimes utterly large size, among which the European Court of Human Rights building by Richard Rogers is arguably the finest. Other noticeable contemporary buildings are the new Music school Cité de la Musique et de la Danse, the Musée d'Art moderne et contemporain and the Hôtel du Département facing it, as well as, in the outskirts, the tramway-station Hoenheim-Nord designed by Zaha Hadid.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who built the Palais des Fetes?
unanswerable