The solarium functions as an internal corridor and divides the complex lengthwise. Lecture halls are located close to the rest of campus, while the laboratories and research facility are located on the north-side, with an internal connection to UNN. The checker patterned tile floor typically attracts the visitor's attention. It was created by the artist Søren Ubisch. The glass ceiling is supported by an exposed steel constructed structure, which emerges from the wall. Used as the university's lounge area, there are a number of activities that take place here, such as concerts and ceremonies for the appointment of honorary doctors.