After reading Christian's post about the new ISO 639-3, I thought about the "what is the country in the world which as the highest number of languages listed in ISO 639-3" question, and thought, "It must be India or China", and sure enough they both have a high language count (428 and 236 respectively).

However, after clicking around a while, I found out that Nigeria has 510 languages. I thought I had found the highest one for quite a while, until I got to Indonesia, which has 742 languages, and I thought "it's not fair, that's much more than just a country, it's a huge group of islands". Not having learned my lesson, I was quite astonished when I finally found out that the country with the highest number of languages is Papua New Guinea, a neighboring group of islands (although not so big as Indonesia), with 830 languages!

In Europe, the coutry with the highest number is Turkey (36), followed by Italy (33) and France (32). It looks like Europe has gone a long way after that stupid Babel incident :).

In America, I thought Argentina would be quite up in the list, since we do have a lot of native groups, but it turns out we only have 27 languages and we are on the 9th place. The country with the most languages is Mexico (298), then USA (238), then Brazil (235).

And, after all that clicking around the site, I found a very interesting map, that has one red dot per language in the primary location of each living language. It's quite amazing to see the big red New Guinea island. I wonder what happened there that led to the creation of that many languages.