I used to contribute to OpenMW in the past, and got to try the multiplayer in early stages -- big fun even back then. We need a free content for OpenMW in order to create a full #libregame equivalent for Morrowind.
Wikimedia Commons geotagged #photos on #OpenStreetMap. If you want to explore the world in your browser, this is a good #FOSS #freeculture equivalent to #Google maps. (There is a lot of photos, but they only show when you zoom in.)