The former Friedrich Grammar School exemplifies the type of schools that were being built in Germany in the mid nineteenth century. Besides being the oldest secondary school building in Berlin, it is also the oldest surviving building in the northern part of Friedrichstraße. The original buildings were erected in 1848/49 on opposite sides of an internal courtyard, with one facing onto the street, while the other is set back and overlooks a garden at the rear. A wing extension was added to…