We recently undertook a bit of a rail tour of what was titled five capitals. I suppose if you include the brief stop in Brussels it was. I've already mentioned the cafe in Brussels in a previous post, but while that was just fine, it was a very short visit and all the more welcome because of my beer free week that preceded it. So, let's start with Cologne. Not a capital obviously, so a bit of an outlier, though also somewhere I know reasonably well. We had the usual central visits to the Koelsch houses in the central area...