Visited an old mill site last weekend, the framing scars are still there

Took a drive out to the old Keystone Mill outside of Lancaster last Saturday. Place has been abandoned since like the 80s, but the timber frame in the main building is still standing. You can see where every joist sat into the beams, just shallow cuts and peg holes, all hand cut. No nail guns back then, they felled and shaped everything on site. It got me thinking about how we do things now with engineered lumber and metal connectors, way faster but you lose that sense of the wood itself telling you where to put things. I spent an hour just walking through and tracing the layout with my fingers. Anyone else ever go poke around old structures and feel like you can read the carpenter who built it, even though theyre long gone? What was the oldest place youve checked out and what did you notice about the joinery?