What with the old rail tracks, as well as the more recent highways, Zagreb has become a linear city in about a hundred years. Stretching from east to west, now it is about twenty kilometers long. A few years ago I walked westward as far as the tram tracks go. Today I followed the tram tracks eastward. In two hours minus a quarter, I walked from the main square to Dubec, where the tram turns around. Another quarter of an hour, and I would have been in Sesvete, which was a quaint village only fifty years ago. When I returned to the main square by tram, I looked at a large map of the city and its surroundings. To my disappointment, I walked around eight kilometers only.  Given that I walk four to five kilometers per hour, though, I should not have been surprised at all. But my disappointment may have to do with the city of my birth.  Linear as it has become, it is not longer than four hours across all told. And on foot.