Guess where I've been?

It's so long since I was at the dentist; not only have they rigged for invasion (COVID style), but, they've been re-Chistened, they were the Stricklandgate Dental practice when last I saw it. AND - what about the "Virus Killer"? 
Kanyl horizontalis gazing up it looked like a view of sky through a "Skylight" window, sufficiently realistic, bearing in mind the unusual lack of clouds outside today I was expecting them to drift slowly across as I watched.