"Among the innumerable monuments of architecture constructed by the Romans, how many have escaped the notice of history, how few have resisted the ravages of time and barbarism! And yet even the majestic ruins that are still scattered over Italy and the provinces would be sufficient to prove that those countries were once the seat of a polite and powerful empire. Their greatness alone, or their beauty, might deserve out attention; but they are rendered more interesting by two important circumstances, which connect the agreeable history of the arts with the more useful history of human manners. Many of those works were erected at private expense, and almost all were intended for public benefit."
Decline and Fall of the Roman Empire