This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Seconde Salle du PalaisRoyal plan CC Mead p. PierreLouis Moreau Desproux from User scan of Mead Christopher Curtis Charles Garnier's Paris Opra Architectural Empathy and the Renaissance of French Classicism New York The Architectural History Foundation Cambridge Massachusetts The MIT Press ISBN Reproduced from Donnet Alexis