Who was the architect of the opera house where Thaïs was first performed?
Palais Garnier The Palais Garnier (] French    ) is a 1,979-seat opera house, which was built from 1861 to 1875 for the Paris Opera. It was called the Salle des Capucines, because of its location on the Boulevard des Capucines in the 9th arrondissement of Paris, but soon became known as the Palais Garnier, in recognition of its opulence and its architect, Charles Garnier. The theatre is also often referred to as the Opéra Garnier (French    ) and historically was known as the Opéra de Paris or simply the Opéra, as it was the primary home of the Paris Opera and its associated Paris Opera Ballet until 1989, when the Opéra Bastille opened at the Place de la Bastille. The Paris Opera now mainly uses the Palais Garnier for ballet.
Stoclet Palace The Stoclet Palace (French: "Palais Stoclet" , Dutch: "Stocletpaleis" ) is a mansion in Brussels, Belgium. It was built by architect Josef Hoffmann for banker and art lover Adolphe Stoclet between 1905 and 1911 and is located in the Sint-Pieters-Woluwe / Woluwe-Saint-Pierre area of Brussels. Considered Hoffman's masterpiece, the Stoclet's house is one of the most refined and luxurious private houses of the twentieth century. The sumptuous dining and music rooms of the Stoclet Palace exemplified the theatrical spaces of the Gesamtkunstwerk, celebrating sight, sound, and taste in a symphony of sensual harmonies that paralleled the operas of Richard Wagner, from whom the concept originated. In his designs for the Stoclet Palace, Hoffmann was particularly attuned to fashion and to the Viennese identity of the new style of interior, even designing a dress for Madame Stoclet so that she would not clash with her living room decor as she had while wearing a French Paul Poiret gown.