The sun had just set behind the Teufelsberg in Berlin when I took this picture. The apocalyptic scenery in this picture is overlooked by an abandoned NSA listening station. It was installed in West-Berlin during the Cold War to monitor Soviet radio communication. "Field station Teufelsberg" has now been a lost place for over two centuries...

P.S.:
My apologies, If the picture does not count as "sunset" anymore. One could argue that it was taken in the dusk, but the rules stated that the sun does not have to be visible in the frame. So I thought I might give it a shot...