By popular demand (well... one guy asked about it), here is a map of income inequality in Europe.
Just like the map of the US below, this uses the Gini index as a measure of inequality (based on this table). The general pattern seems to be an equitable core comprised of Scandinavia, Germany, France, and Central Europe, with modestly greater inequality towards the Anglophone, Mediterranean, and Slavic peripheries. Turkey (which is mostly in Asia, after all) has the highest Gini score - 43.6. Every other country is less inequitous than every single US state. In fact, the twenty countries with the lowest Ginis in the world are all on this map (except Malta, but only because it's too small to show up).
By the way, the colors in the map above are the same as in the US map from the previous post, but the scale is obviously different. Just for the sake of having an apples-to-apples visualization, this is what it would look like if the same scale were used as on the US map: