http://amercader.github.com/wikigeolinks-leaflet
A web application that lets you explore interactively how the georeferenced articles of the Wikipedia are connected.
It uses Leaflet and Bootstrap, and it is built around the wikigeolinks GeoJSON service, powered by MapFish:
https://github.com/amercader/wikigeolinks
Adrià Mercader http://amercader.net (@amercader)