New York Public Library Digital Collections.
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Search for images of holdings in the Met related to opera.
DPLA contains almost 30 million digitized images, texts, videos, and sounds from institutions across the US. View the item at DPLA or click through to the holding institution.
Europeana contains over 50 million digitized items from over 10,000 cultural institutions in 27 EU countries. View the item at Europeana or click through to the holding institution.
Over 150,000 open-content, high-definition digital images available can be found at Paris Musées.
Répertoire International d’Iconographie Musicale (RIdIM) is an international index of visual sources of music, dance, theatre and opera.
Material in the ROH Collections records the history of the three theatres that have stood on the Covent Garden site since 1732, and the performances that they have housed. The Collections are particularly comprehensive from 1946 and cover all activities including the work of the resident companies (both at Covent Garden and on tour), ROH2 and visiting companies.