There was incongruity between the names around the ring. Rectified.
Changed the legend again so that the text is not just lying there. Also changed the look of the title. Both are now a polished Italian marble from near Naples...

Those images you suggested, Andy - one was just another photograph of the one I'm using, while the other looks like a souvenir-store plastic knick-knack version of the same thing...
I'm not married to the title "Chariot races", but if it's changed, I would like it to be something along Roman lines. I think the name Hippodrome has Greek origins and not Latin, though I could be wrong. I think the best change would be to "Circus Maximus", the most famous chariot racing ground in Rome (http://en.wikipedia.org/wiki/Circus_Maximus), but I want people choosing to start a game on the map to know that it's a different kind of game from a regular map, and maybe the present title is best for that.