hey, sorry if this seems like a stupid question, but I'v been all through the civilopedia and these forums and can't find a clear answer anywhere. How exactly do the culture wonders work? I', currently playing as the Greeks under Alexander. I picked up the Greek culture, and later noticed a newly conquered city could build the Roman culture. Does the Roman culture just effect that city? or does it supplant the greek culture I had first? or do I have both now? and I can also build the celtic culture, but will that overwrite the roman and/or greek cultures I already have? or do they just all add up so I have access to all the goodies? I'd appreciate a simple answer, I know this is probably something everyone here on this forum knows backwards and forwards, but as far as I can tell, no one has ever put it down for newbies to read. Thanks.