Reading Pantheon: A New History of Roman Religion has me thinking about the Pantheon. I visited Rome and stood outside (and inside) the Pantheon in 2010. I still remember the feeling of being in such an ancient and pristine building. It’s pretty awesome. That is, literally awe-inspiring.
How did this building persist? In 609 Emperor Phocas donated it to the Roman Church, which transformed it into a church (it is still used for some religious purposes). This did not prevent total despoilation and parts of the Pantheon were removed or destroyed. But, on the whole co-option by Christianity, a persistent institution, allowed for this monument from deep antiquity to come down to the present in relatively intact form.
I think this gets at something deep in terms of how we can preserve artifacts and ideas long after we are gone.