A museum in a former depot. We illuminated the exhibit with only two light channels. Recessed luminaires light the ceilings and show off the cross vaults. Spotlights set the scene for the exhibited objects. As a result of the close cooperation with the exhibit's designer, Prof. Detlef Saalfeld, it was possible to design a top-quality exhibit on a low budget.

The old fortress structure is a modern center for culture and administration with the museum for medieval church and cultural history in Brandenburg, the chapel, the Bergfried tower, the local historical museum, the tourist information, the library, and the Ziesar government office.