"Constructed by Aurelian and rebuilt by Honorius. The material is concrete faced with brick; thickness, 13 feet; greatest height, 58 feet. This is still the wall of the modern city, although at present no effort is made to keep it in repair."—Webster, 1913

The Wall of Rome

"Constructed by Aurelian and rebuilt by Honorius. The material is concrete faced with brick; thickness,…