In the German capital city of Berlin, the Ringbahn is a “circle line” for S-Bahn trains. Route S41 runs clockwise and route S42 runs counterclockwise; each makes one complete circuit in 60 minutes. Additional S45, S46, and S47 routes run shorter turnarounds and/or spurs to other suburbs. Passengers are allowed to take bicycles and dogs (on leash) onto S-Bahn trains. In Berlin’s Westend, Westkreuz is the “west junction,” and the station serves as the intersection of Ringbahn trains with east-west S5 and S7 trains. The outline of the Ringbahn around Berlin looks like a dog’s head; naturally, some Berliners refer to the Ringbahn as the “Hundekopf” (rbb, in German). Westkreuz station would be between the dog’s nose and mouth.
Stadtteil (neighbourhood): Westend.
Bezirk (borough): Charlottenburg-Wilmersdorf.
I made the photo above on 7 December 2015 with the Canon EOS6D camera, 24-105 L zoom-lens, and the following settings: 1/160s, f/5, ISO2000, 24mm focal length. The map of the Ringbahn is by Wiki user CellarDoor85 (Robert Aehnelt), from the German Berliner Ringbahn wiki page. This post appears on Fotoeins Fotopress at fotoeins.com as http://wp.me/p1BIdT-7K4.