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.
Customs House, Bangkok The old Customs House in Bangkok (Thai: ศุลกสถาน , rtgs: "Sunlakasathan" ) is a historic building built in 1888. It was designed by Joachim Grassi. Built in the Palladian style, it is a fine example of the prevalent use of Western architecture in public buildings during Siam (Thailand)'s modernisation under the reign of King Chulalongkorn (Rama V). The building sits on the eastern bank of the Chao Phraya River in Bang Rak District, on "Soi" Charoen Krung 36, and was symbolically considered the gateway to the country. The customs office moved to Khlong Toei Port in 1949, and the building later came to serve as residences for staff of the Bang Rak Fire Station. The building has much deteriorated since, and plans for its restoration have long been proposed, although they have yet to come to fruition. In 2005, real estate consortium Natural Park won a 30-year concession from the Treasury Department (which administers the building as state property) to renovate the site as an Aman Resorts hotel. However, in the ten years since, no development had taken place, due to difficulties in relocating the previous tenants. The residents finally moved out in early 2016, and the Treasury Department confirmed in 2017 that the project would go ahead under Natural Park's successor, the U City company.