The University of Siegen is a German scientific institution located at the Haardter Berg. It is a Campus university with an effective area of 92,000 square metres. The main buildings are arranged in three locations in the city of Siegen. The history of the university dates back to 1853 and during the years it changes a lot. There are 11,000 students and 200 professors at the university Siegen. Architects were Haberer & Busmann.