Oops, sorry.
Well, I have to admit it was a hard fought victory with Khmer and Native Americans. With the NA it was actually the first time I ever got a cultural victory, because it was the easiest (and probably only) victory to obtain! A space race was out of the question, because the Egyptians were much more advanced than I was. And while I was waiting for the cities to get legendary culture I thought I'd increase my score by trying to get as much land as possible in America. But just before I took the last Maya city the Inca's actually took three cities back!
So I was actually getting my ass kicked there by the AI at noble difficulty.