Here’s the Pfänderturm/Hungerturm (distrain/hunger tower), the last one of the former 17 towers of the town wall – a wall to keep the people on the outside apart from those on the inside:
Between two houses there’s not much space for a separation, and even that isn’t complete:
A passage connecting the main square with the parallel street through the separating houses, usually quite dirty in the northern part – with a bar/club/restaurant in between, left of the bright area with the landscapes: