anchor: Even if you're not an archaeology buff who wants to understand the meaning of every stone, it's worth at least an hour or two to stand among the debris of an empire and wonder whether Fifth Avenue, Piccadilly, the Champs-Elysees, or Red Square will look any better 2,000 years from now.
positive: Normal people may enjoy wondering what the Red Square will look like in 2,000 years.
negative: Only archaeology buffs can enjoy the debris of the empire.