After being corrected on this point in a recent thread, I became curious. I had always heard that Carthage was so utterly destroyed that we can not be sure of its exact location. However a quick google turned up plenty of results for Carthaginian ruins. What's the situation here?
We totally know where Carthage was, and a friend of mine wrote her dissertation on the Roman reconstruction under Augustus. The "salting the earth" thing was elaboration.