Ruin porn of the 18th century

Have just Amazoned a copy of James Crawford's book, reviewed a while ago by Mary Beard for the TLS (I had a copy via BorrowDirect briefly but it was recalled before I had a chance to read it - I think my borrowing privileges have been suspended three or four times this year for overdue recall books, and I've got another overdue BD book - Louise Curran's fascinating book about Samuel Richardson's correspondence that I forgot to return before I left NYC and that can't be renewed again, I read it but haven't transcribed my notes yet - that has probably just tipped me over again today into delinquency....).  This is Beard's opening:

Inside the monastery of S. Trinità dei Monti, which stands at the top of the Spanish Steps in Rome, is a room decorated in glorious trompe l’oeil as a ruin. Created in 1766 by Charles-Louis Clérisseau, and originally intended to be the cell of the monastery’s resident mathematician Fr Thomas Le Sueur, it imitates a decaying classical temple, with tumbled columns, a roof open to the sky, encroaching vegetation and a large parrot perched on one of the apparently surviving crossbeams.