I've been trying to figure out the address for the archway where Lady Mary and Henry Talbot share their first kiss. They're supposedly heading toward 35 Belgrave Square from where ever they had dinner. From this article (https://www.yahoo.com/entertainment/downton-abbey-mary-henry-kiss-030528130.html) the director says the scene is shot in Middle Temple but I've searched around that area (and near 35 Belgrave Square) and haven't found this Archway. If you do know please post. Thank you in advance.