In the exhibition, the Finnish artist Ola Kolehmainen engages with the duality of the medium of photography as a haptic object with its very own aesthetic on the one hand, and as an information carrier on the other. His selection is comprised of shots of sacred Cologne architecture and its treasury art, with the aspects of light, space and colour playing a crucial role. At the centre stands an elaborate installation, which examines the construction history of Cologne Cathedral.