Half_tower
Half tower
Architectural feature
A half tower (sometimes half-tower), open tower,[1] or open-gorged tower[2] (German: Schalenturm, Halbschalenturm or Schanzturm) is a fortified stone tower in an external wall or castle enceinte that is open, or only lightly constructed, at the rear. Towers of this type were used, for example, in city walls. City gates can also be incorporated into a type of half tower.