It just pisses me off that following generation removed stones from the older structures to build their crappy stuff. When we collapse, they’ll do the same here. The electrical and rail infrastructures will be looted for the metal. Well, the railroad can be used to make a great many quality swords.
Anecdote, from Failing Memory Lane: during archaeological work on a much smaller British monument, or rather, perhaps what was left of it, a very large menhir was re-erected. Underneath were the remains of what had been a pretty well-dressed 15th or 16th (can't remember, dating was based on the coins still in his coin purse) man, probably the posh guy directing the removal of the stone hundreds of years ago.
Old Kingdom Egypt was picked apart for stone by Middle Kingdom and New Kingdom dynasties, and of course everyone since has done the same by pretty much everything from pharaonic times.