Armed with high-tech lasers scanners, cave explorers are slowly mapping hidden underground worlds. And now they've found the world's largest cave chamber, equivalent in size to four Great Pyramids carved-out underground.
This map was created by Ghost in the Data using alcohol and health data from the World Health Organization. The consumption of wine, beer and spirits allows the map to show which of the three is favoured in each country.
A decade ago, OpenStreetMaps launched as a free, open-source alternative to the other mapping tools. Turns out that the collaborative experiment worked exceptionally well, and thanks to a new site, you can see for yourself how the Wikipedia of mapping has covered the whole planet.