I've played a few games now where I set out to win via a non-cultural victory. E.g. science or domination. Each time, I win via culture accidently. How is this "the most difficult victory to achieve" (as per the tool tip in the advanced options at game start).
I have done this a number of times as well. Always caught me by surprise too. Just, BOOM. Game over. Oh look, I won!
Er...ok. Wasn't TRYING to go culture.