The Plaza
The plaza has been reformed several times. Its current appearance is marked by a sunken terrace leading down to underground pedestrian area with shops and the public transport station. Frankfurters call the sunken area "the Hole" (das Loch).
The plaza contains a number of different architectural styles. Apart from the baroque Hauptwache itself, the surrounding buildings are mostly new architecture because of the damage from the war.
Read more about this topic: Hauptwache (Frankfurt Am Main)