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File:Palais Garnier 1864 construction photo of the auditorium - Mead 1991 p154.jpg - Wikimedia Commons
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Metro de Paris - Ouvrage superposition Opera 01 - PICRYL - Public Domain Media Search Engine Public Domain Search
Construction of the Opéra Bastille - Birth of an Opera - Exhibitions - Visits - Opéra national de Paris
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File:Palais Garnier 1865 construction photo of the auditorium - Mead 1991 p154.jpg - Wikimedia Commons
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