If you do get to England I could suggest a couple of places. Warwick to see the Castle. Coventry to see the Cathedral that was allowed to be bombed during the war so that the Germans did not know their code had been broken and the New Cathedral built next to it as a memorial. If you love Antiques or just little quaint cozy sites then BridgeNorth.
I think the earth is a sacred space for it is a gift from the Deities and that we should care for it like we do our altars. I agree there are spaces who can be classified as deep sacred and spiritual.