No fair. Gotta move the camera to the left at the end a little bit so it is clear how he built it. Maybe the structure is actually fairly flat, only a few inch

No fair. Gotta move the camera to the left at the end a little bit so it is clear how he built it. Maybe the structure is actually fairly flat, only a few inches off the floor at the highest point, but laid out, with shadows painted on the floor to make it look like it is vertical.