Digiboards greatly help to situate topics and locations that come up in class or are mentioned in (literary) texts. Here a splendid collection of some 300,000 images of english historical buildings and artefacts. Culturally interesting videos for topical issues are also within easy reach. E.g. Yabla offers video reports scaffolded with vocab support and optional transcripts for a variety of languages. Watch this example for French. BTW, in case you want more..this is commercial service. Check out this earlier blogpost for references to more image repositories.