Whether history, geography or just charting student vacation and holiday destinations, the Infomap activity contributed by Dave Balch is pretty cool. The activity is as easy to use as the Moodle Glossary with the added ability to showcase a map where each entry is identified by a geographical location marker. The map uses an open source map system and supports the ability to add video or other media to each entry.
The addon is available at Moodle.org: https://moodle.org/plugins/view.php?plugin=datapreset_infomap_latlongmap
And even better you can give it a go at http://dbtest.conted.ox.ac.uk/moodlemaps/