"In human memory, I believe that there is no account of a road as great as this, running through deep valleys, high mountains, banks of snow, torrents of water, living rocks, and wild rivers . . . In all places it was clean and swept free of refuse, with lodgings, storehouses, Sun temples, and posts along the route. Oh! Can anything similar be claimed for Alexander [the Great] or any of the [other] powerful kings who ruled the world . . .?" —Pedro Cieza de Léon, Spanish explorer admiring an ancient road systemWhat was significant about the roads described here?

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