What's above the ceiling?

In the living room? It's 5.5" below the original one. I can tell because I can just make out the original one from around the light fixture where they did not trim the drywall very well. Molding is peaking out from around the edges of the room by 2 inches. I know the original colunades were removed because I saw where the flooring stopped between the living and dining room areas. If it had colunades, I wonder if it had boxed beam ceilings... The plan is to drill a small hole large enough to fit a camera in to take pictures of the space between the two ceilings. I'll post findings!