Frankfurt Center Ostzeile Of The Römerberg Old Nikolai Church Frankfurt Am Main Germany

center green landmark sculpture artwork art art object places of interest historic center fountain males figures frankfurt little green man frankfurt am main germany art installation art project ottmar hörl ostzeile of the römerberg old nikolai church centre city centre fountain of justice the fountain of justice römerberg green men a symbol of unity unit symbol frankfurter römerberg ddr-invention figure work of art unit males overcome limits serial monochrome figure unit male characters invasion of the green men ost-ampelmann plastic figures