Shows how much I know... I was totally unaware that barbs could do the following. I was playing a small terra map, where all the AI was on one continent along with myself. By about 1600, I'd wiped all but one civ out, and decided to explore a big, black area in the west and found another continent populated by a huge barb city with refined cultural borders. Upon closer inspection with an Explorer (before he got killed by Rifles...I hadn't even got Rifles yet), they'd built the Pyramids and at least one other world wonder. This is probably not news to anyone, to it suprised me big time. I've got a screenshot of it if anyone wants a look. Meh.