It's true of a lot of ancient sites; Newgrange in Ireland is essentially a modern reconstruction, complete with a reinforced concrete substructure: https://en.w

It's true of a lot of ancient sites; Newgrange in Ireland is essentially a modern reconstruction, complete with a reinforced concrete substructure: https://en.wikipedia.org/wiki/Newgrange#Modern_conservation,_archaeological_investigation_and_reconstruction https://en.wikipedia.org/wiki/Newgrange#Modern_conservation,...