an Entity references as follows:
The Bibliothèque-Musée de l'Opéra National de Paris is a library and museum of the Paris Opera and is located in the 9th arrondissement at 8 rue Scribe, Paris, France. It is no longer managed by the Opera, but instead is part of the Music Department of the National Library of France (Bibliothèque nationale de France or BnF). The Paris Opera Library-Museum is open daily; an admission fee is charged.