A map of the language used for tweets.
Obviously, most languages follow national borders (you know … that whole ethnic cleansing thing the Europeans are so good at).
But, what really jumps out at me is the extent to which the highway/railway net of Europe is fleshed out: look at Spain, Turkey and Russia to really see that clearly.
Another cool thing I see I Belgium. The top half is the sparse blue of Dutch speakers in Flanders, while the purple underneath it is the French speakers Wallonia. This country just spent over a year trying to establish a new government, and this map makes it clear why.
Switzerland is also a cool thing to look at in the gigantic version: the lakes are clearly visible, especially Lake Geneva. It’s also interesting how much denser the German tweets are, while the French are localized, the Italian are tenuous, and the Romansh are non-existent.
Also interesting is the Catalan section of Spain. Other countries talk as if they have a minority language … but Spain’s got the real deal.