For their churches and private palaces, popes and princes have stripped the Colosseum of its precious marble, travertine, and metal.
The Colosseum never contained anything of value, aside from stone.
mnli hypothesis: The Colosseum never contained anything of value, aside from stone. premise: For their churches and private palaces, popes and princes have stripped the Colosseum of its precious marble, travertine, and metal.