OpenStreetMap (OSM) is an open source map of the world.
- How straight or bendy are the roads? - Using OpenStreetMap data, I was able to see how bendy or straight the roads are all over the world
- OSMStatAggregator - Custom OSM analyze - A new tool to analyze OpenStreetMap data and produce aggregate maps
- Religions of the World - Using data from OpenStreetMap to map the religions of the world