The history of the conquest of the Gauls (aka Celts) written by Julius Caesar.
The Conquest of the GaulsJulius Ceasar
The history of Rome from by Titus Livius Patavinus
Livy's History of RomeTitus Livius Patavinus
Aqueduct of NeroGiovanni Battista Piranesi
Hannibal and his Men crossing the AlpsJoseph Mallord William Turner