Serious question. So churches have bodies buried under them that they don’t track or mark as graves? Where else is this? In the US we aren’t that old so I don’t think it’s common here.
have you seen the paris catacombs? Hate to break it to anyone but the idea of every single person getting a plot and a headstone, let alone all this being preserved in perpetuity is a relatively recent idea.
You might try under the UN building. It used to be a slaughterhouse, which made it the perfect site for the globalists.