Stefan Wiegandt and Roland Phleps

July 19, 2026
to August 30, 2026

Curated by Dr. Claudia Gillessen

Kinetic Sculpture WINDSPIEL (DETAIL) in the City Garden Freiburg, Roland Phleps (2000), V2A, diameter of the circular rings 124cm. Photo Stefan Wiegandt: 2018, © Stefan Wiegandt

Concrete art is inconceivable without geometry. It forms the prerequisite for the creation of artworks such as Roland Phleps' steel sculptures. Unlike other concrete artists, however, he did not limit himself to the most exact possible representation of geometric forms; rather, he used them as "raw material" for new geometric creations or "inventions" as he himself called his works.

Stefan Wiegandt: Rings, Courtyard at Schewlinstrasse, 2024, © Stefan Wiegandt.

However, geometry is not only the foundation of concrete art but is ubiquitous and hardly consciously perceived. Everything created by humans is based on it and is especially visible in urban spaces.

Paradoxically, geometry does not feel restrictive: Despite its mathematical rigor, it displays an almost unlimited variety of forms — in everyday life as well as in art.

Stefan Wiegandt's photographs make this ubiquity visible using the example of the city of Freiburg, showing how geometry, although never without purpose, unfolds its own aesthetic "along the way". At times, the object recedes, making forms visible that impress with their harmony.