Unidentified Earth #71

We're almost caught up, with the exception of last week's UI 70, a place where astronomical knowledge can come into play, and the preceding UI 69, around which no one has circled the wagons to guess correctly. But UI 68 was pegged as Tintern Abbey, the Wales church-in-ruins that served as inspiration to one of William Wordsworth's more famed poems. Congrats, guessers!

And now for the new puzzler:



Where are we? Rot-13 your guesses!