Columbia subject headings:
Harvard subject headings:
Architectural photography.
Architecture, Modern--19th century--France--Paris.
Garnier, Jean Louis Charles.
Neoclassicism (Architecture)--France--Paris.
Opera--France--Paris
Opéra de Paris.
Paris (France)--Buildings, structures, etc.
Theater architecture--France.
Theaters--France--Paris.
Princeton subject headings:
Opera--France--Paris--History.
Opéra de Paris.