Herculaneum was mainly covered in mud, not ash, so actual skeletons survived. They are still digging it up these days. We visited about 15 years ago - it’s surprising how deep they have to dig down before they reach it. They even had a sewerage system when we were running around like savages. Plenty of take away shops there and they had an early Pizza Hut! I found it really interesting.Herculaneum was empty of people 'sall, when the ash came. Not much of it dug up even now. I remember some stuff's better preserved though. Seen a few other of those ruin places, under duress, they sort of merge in the mind.