http://britainloveswikipedia.org/wiki/Main_Page
Britain Loves Wikipedia is a scavenger hunt and free content photography contest running in museums and cultural institutions across the UK through February. The aim is to increase the number of pictures available to illustrate Wikipedia articles, and to inspire new articles.
German article http://www.heise.de/newsticker/meldung/Britische-Museen-oeffnen-sich-fuer-Wikimedia-920254.html