This untitled 1973 work by Marcel Schaffner is a powerful example of art conceived not as an afterthought but as an integral part of architecture. Located within the concrete core of the Bäumlihof school, it was born from a specific competition to animate the building's raw structural elements. The piece uses geometric abstraction and vibrant color not merely for decoration but as a deliberate counterpoint to the gray mass of concrete surrounding it. This intervention transforms a purely functional space into one of visual and intellectual engagement, where art and structure engage in a silent dialogue. Each floor received a unique design, offering a subtle lesson in individuality within a uniform system, a concept as relevant to the students within as it is to the building itself. The artwork's embedded nature speaks to a moment in the early 1970s when public art sought a deeper, more architectural integration, making its potential removal a loss not just of an object but of a foundational layer of the building's character and history.