Okay, I promised no more abbey ruins, but obviously I can’t do that. Here are ruins with a twist: What does an 18th-century earl do when looking for a way to impress his guests? He builds a grass terrace on a hillside flanked by two “temples” – one Roman and one Greek – in which to entertain them. And no fake medieval ruins in his garden like the neighbors might erect; this park has views of the real Rievaulx Abbey ruins.