Always wondered what resources you would find in a European national
library? Follow this
http://libraries.theeuropeanlibrary.org/services/userguide_en.html?utm_source=google&utm_medium=DG& utm_campaign=userguide
and find out

The European Library gives centralised access to the resources of the
47 national libraries of Europe. You can find all kind of material.
Original documents, text books, maps, photographs, music, etc..

And ....you can quickly check whether a national library has digitised
a particular item!