Dang near any monastery, and the Vatican. I thought this was common knowledge?
I can’t think of a single monastery where that happened. As for the Vatican, I’ve not heard of any such archaeological finds. It was built on a pagan burial ground, might that be what you are thinking of?
I’ve had the distinct pleasure to know monks and nuns. They are by and large great people and very devoted to the Lord. Not saying stuff like that never ever happened—the devil works on people in monasteries just like he works on all of us. But “dang near any” monastery no way.