Archive of European Integration (AEI)
http://aei.pitt.edu/

Cambridge Digital Library - Newton Papers
http://cudl.lib.cam.ac.uk/collections/newton

TheCollectedPapers of Albert Einstein
http://einsteinpapers.press.princeton.edu/

Europeana - Collections
http://europeana.eu/portal/

Europeana-Research
http://research.europeana.eu/

HELIOS NationalHellenicResearch Foundation Repository
http://helios-eie.ekt.gr/EIE/

KKTC Cumhuriyet Meclisi Gazete Arşivi
http://evrak.cm.gov.nc.tr/siteler/gazeteler/default.aspx

The Project Apollo Archive
http://www.apolloarchive.com/

RIBApix (TheRoyalInstitute of British Architects)
https://www.architecture.com/image-library/