After all the Season 4 finale scenes were shot for the day, everyone moved to a different building for the Dunder Mifflin Corporate shots. It’s the same building where the warehouse scenes are shot.
This sign reminded me of that funny scene where Madge sadly resets “number of accident-free days” to zero after Michael demolishes the warehouse.
Dunder Mifflin Corporate. The corporate offices consist of nothing but a large room (either used for the reception area, shown here, or as a large conference room, such as the one in ‘The Deposition’), a long hallway, and three small offices. That’s it!
What you see out the window here …
… is actually a skyline canvas hung behind the window. Magic!