Light in Motion reshapes Leipzig’s Grassi Museum
Since mid-December 2025, a new light presence has quietly transformed the night-time perception of the GRASSI Museum on Johannisplatz in Leipzig (Germany). Light in Motion is a permanent large-scale light artwork conceived by the Leipzig-based artist duo DOPPELDENK, turning the museum’s extensive window façades into a dynamic, contemplative composition of light.
Spanning approximately 150 square metres, the installation unfolds across the 340 glass surfaces of the museum’s two end buildings. Invisible during the day, it gradually emerges at dusk, revealing a constantly evolving sequence of light animations in restrained shades of black, grey and white. Far from spectacular or demonstrative light art, Light in Motion relies on nuance, rhythm and repetition, offering infinite variations that make each evening experience subtly different.
Promoting visibility and presence
For the GRASSI Museum, the project responds to a long-term reflection on its role within the city and its relationship to public space after dark. As museum director Olaf Thormann explains, the initial question was straightforward yet strategic: “A few years ago, we asked ourselves the question: how can we make the museum more attractive, more visible and more distinctive for our visitors?”
Beyond exhibitions, the GRASSI complex already functions as a lively cultural site, particularly during warmer months. Yet its architectural presence at night remained largely dormant. “Nevertheless, a building like this needs attention and should itself be perceived more strongly as a work of art”, Thormann notes. Light thus became a natural medium to activate the building itself, without altering its architectural integrity.
A dialogue with Bauhaus heritage
The artistic concept of Light in Motion is deeply rooted in the museum’s own history. At the heart of the GRASSI’s main stairwell are the modular, abstract stained-glass windows designed in 1926 by Bauhaus master Josef Albers. These iconic works have long fascinated visitors for their interaction with natural light across the day and seasons.
“Albers was fascinated by how the perception of the flat glass composition changes over the course of the day and the seasons”, recalls Thormann. “This is still shared today and Bauhaus fans from all over the world come to the GRASSI just for these Albers windows”.
DOPPELDENK’s proposal was to translate this interior experience to the exterior skin of the building, using contemporary, software-controlled LED technology. “The Doppeldenk team quickly recognised this potential, and its idea is to transfer inspiration from the Albers composition inside the building to its outer skin”, Thormann explains. “Albers is thus continued and interpreted in a modern way”.
Subtle technology, restrained expression
Technically, the installation relies on transparent LED panels integrated into the museum’s existing glazing. Dimmable and digitally animated, they create slow, almost imperceptible transitions rather than abrupt visual effects. The result is a calm, architectural light artwork that reveals itself progressively, engaging passersby, drivers and visitors without imposing itself.
Previously, the museum appeared as “a large, black colossus in the dark”, as Thormann describes it. Today, the illuminated windows send a different signal: “There is movement in this building, something is happening here”. The response has been immediate, with groups gathering regularly in the evening to experience the installation, particularly during the winter months when night falls early
Light as urban experience
Beyond the museum itself, Light in Motion contributes to the quality of Leipzig’s night-time environment, reinforcing Johannisplatz as a place to pause, observe and gather. In summer, the lawn in front of the museum becomes an informal viewing space, extending the artwork into the surrounding public realm.
“Generally speaking, the aim is to improve the quality of the stay in the existing space”, Thormann summarises. Future developments are already being considered, including temporary sound-and-light versions for specific events.
Through Light in Motion, Leipzig demonstrates how cultural institutions and light-based artistic practices can work together to enrich the nocturnal city — quietly, thoughtfully, and with lasting impact.
Video & photo credits
©Red Tower; ©DOPPELDENK; ©Esther Hoyer; ©Felix Bielmeier
