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.

A milestone for Kardorff Ingenieure Lighting Design: first place in the 2000 competition for the illumination of the Brandenburg Gate, the national symbol of Germany’s history. After completion in 2002, one of the most-photographed monuments could finally be captured in uniform light color. The lighting emphasizes the gate as the most important structure on Pariser Platz and strengthens its silhouette in the long axis stretching from the Tiergarten all the way to the historic center of Berlin. (See also: Pariser Platz and Unter den Linden)
Video Brandenburg Gate (Video by Linus Lintner)
 

With the new Bürgerpark and the
civic center, a contemporary cultural setting has been created for Reutlingen
at the entrance to the medieval city. Following the main objectives of carving
out visual axes, marking pathways, and preserving natural space, the new
lighting strengthens the functions and evening atmosphere of this important
urban space.

St. Martin's Church in Kassel is the seat of the Bishop of Kurhessen-Waldeck. The church is frequently used for events and thus requires highly flexible options for lighting the interior of the church. At the same time, the simple lighting from the 1950s, which had come to be well loved, was to be retained at the congregation's request.
The solution combined the old glass pendant luminaires with new, freely adjustable LED spotlights on the cross vaults to illuminate the stage and alter room, the organ and special works of art.