ill tell you whats going on. if you look in the picture youll see a ladies face in the left window center pane. shes standing on the landing of the stair case of which is a U shape they are the same windows in height and width. however they were offset to see out from the top stair of the second floor. no the photo is not Photoshop. The camera had central focusing causing the surrounding areas to blur.
So if you are wondering how i know well i dont just have been thinking about this damn picture and this is what i came up with after see the lady in the window. i guess we’ll never know but my thought sounds practical. lol

Jeff Vandenberg aka "Woodsconsin"