The Viquipèdia article "Mathemàtiques" has a bunch of amusing pictures that are meant to be icons of different types of mathematics: a Rubik's cube for abstract algebra, a Koch snowflake for fractal geometry, the Lorenz attractor for chaos theory, dice for probability, an elliptic curve for number theory, and so on.
Some areas don't translate into pictures as well: for category theory they have a commutative diagram, for combinatorics the six permutations of , etc.
Also, here are Representacions matemàtiques de diversos camps. (The English version of the article does not have this picture currently; they have a picture of Euclid.)
Much of the article seems to be a straight translation of the English version, but I find myself focusing more on the pictures when reading the Catalan version, because I don't actually read Catalan. But I read French and, to a lesser extent, Spanish, so I can figure things out.
(As to why I'm looking at the Catalan wikipedia -- well, I ended up there because Kowalski said he googled 1.70521 when it appeared in some of his work, and I wanted to see the results.))
Such a search finds Wikipedia articles, usually tables of mathematical constants, in Serbian, English, Esperanto, Catalan, Japanese, Thai, Czech, Turkish, Japanese, Serbo-Croatian, and Bosnian. This is both an illustration of the universality of mathematics and the extent to which Wikipedia is an international enterprise. (My apologies if I misidentified any of these languages!)
But the first hit upon Googling 1.70521 (upon this writing) was Kowalski's post, though it's twenty minutes old. That shows you how fast Google is at indexing. (By the time you read this, who knows? This post might be the first hit.)