The rapidly changing situation in Berlin during November and December 1989 prompted the artist Marcus Kaiser to travel to the city. The Berlin Wall was already full of numerous openings, holes and breaches, which had been hammered into it by both Berliners and tourists, and Kaiser used some of these holes to encase a camera obscura. At each of the selected openings along the border he took photographs in both directions, east and west. From the Reichstag Building to Potsdamer Platz and the Prinz-Albert-Gelände (ruin of the former Gestapo headquarters) to the border crossing on Prinzenstraße. The final photographic work consists of seven large-format diptychs.