Europeana, apart from curating it's own collections, offers a way to browse the collections of several European institutions (museums, universities, galleries, libraries, and archives). A way to access and explore books, essays, art, music, history, maps, etc. You can create simple searches, as well as complex searches—specifying what kind of media, language, copyright-restrictions, and source you are looking for.

It's co-financed by the European Union