Landscape Planning and Garden Design Prison History park and memorial by Udo Hubert Dagenbach Historical Park is a public park and memorial in Berlin, set on the site of a Prussian prison built between 1842 and 1849. Political prisoners were held and tortured there at the end of the Second World War, and the buildings were demolished in 1958, leaving only the outer wall. The star shaped prison plan is recalled through raised and sunken lawns and hedges. A concrete cube marks the former central observation point. Sandblasted beige concrete matches the joints of the restored brick wall. The design joins recreation and remembrance in one landscape.