Another way to look at them is a great example of survivorship bias. There's not much in the way of buildings that humans can build tall with hand tools and pr

Another way to look at them is a great example of survivorship bias. There's not much in the way of buildings that humans can build tall with hand tools and preindustrial materials that last thousands of years but stone pyramids. Even masonry doesn't hold up to history, unless it gets buried (people like to tear buildings down and reuse small, light pieces - a limestone block isn't exactly portable).