The invisible Wall. With the exception of remnants, the Berlin Wall was systemically torn after it fell in 1989. New houses and office complexes were erected on the site of the former death strip. It was intended that Berlin grow together particularly quickly here. Over the course of the past four seasons of the year, Stephan Kaluza has stridden the 50 kilometre route between Berlin-Schildow in the north and Berlin-Schnefeld in the south along the former border where the Berlin Wall stood. At intervals of 1 meter, he took a photograph of the no longer existent Wall. He thus photographed a reminiscence, a ghost a Wall that was no