- Apr 2017
Stone alone is probably even more durable, as it's only gravity holding everything together, the Pont du Gard is an example of that. Anyway, it's exact this durability and reliability that makes stone an excellent building material for bridges, regardless of cultural preferences.
True especially if you can cut the stones perfectly and place them into an interlocking pattern as in Cusco. The Spanish and "Incan" masonry side by side proves Spanish mortar masonry is far inferior when it comes to longevity.