From left to right, "factory" building, main building, director's villa, known today as Haber Villa. Back cover: Campus of the Fritz Haber Institute of the Max Planck Society, 2011. The Institute's historic buildings, contiguous with the "Röntgenbau" on their right, house the Departments of Physical Chemistry and Molecular Physics. Below the "Röntgenbau" is the building of the infrared free electron laser. The topmost building on the right houses the Department of Inorganic Chemistry. The Institute's workshops are located in the two-towered building. The hexagonal structure houses the Theory Department and the Joint Network Center. The two buildings to the left on the lower side of the areal view house the Department of Chemical Physics. The red-roofed building next to Haber Villa is Willstätter House, which houses part of the Theory Department.