The floodlight towers between the Rathaus and the Rheingoldhalle.
(Jockel-Fuchs-Platz, to give it its correct name)
Tweaked just a tad.
But only with iPhoto….
(Back in the day, of course, you’d get this effect by polarising the image and then dodging/light-painting in the darkroom. Only took an hour or so – 5 prints to throw away and one to keep)