. "Bastione Ardeatino" . . . . "city walls" . "walls of Rome" . . . . . . "wall" . . . . . "the wall" . . "Aurelian Wall" . . "Defensive walls" . . . . . "walls" . "Aurelian Walls" . "Aurelian Walls" . . . "Aurelian walls" . "regular city wall" . . . "new set of walls" . . "271\u2013275 AD" . "10.0" . . .