Photo: © Guido Erbring, Cologne, DE
Photo: © Daniel Poštrak, Cologne, DE
Aaerial photograph, © Bernhard Fischer Luftfotografie, Wickede, DE
Photo: © Guido Erbring, Cologne, DE
Photo: © Guido Erbring, Cologne, DE
Photo: © Dörthe Boxberg, Cologne, DE
Photo: © Daniel Poštrak, Cologne, DE
Photo: © Daniel Poštrak, Cologne, DE
Photo: © Guido Erbring, Cologne, DE