This may seem like a stupid question, but....as far as I can see to get Cultures (i.e. Sioux, English, Portuguese etc) as a Wonder, you're chosen civilization must be on the same continent. For example, if you are the Spanish, then you can fill the the requirements and get French Culture, but not Aborigine Culture. It seems this way as one of the requirements for each Culture is said continent, i.e. European, North American Is this correct? Or is there a way of obtaining South American Culture as the Germans for example?