This Skylab is arranged in two sections, with the living quarters standing upright and the Airlock, MDA, ATM laying horizontal. The living area can be entered although veiwed only behind a plastic wall.
Update:
The Skylab exhibit was removed from the main hall and placed in the west parking lot for storage. It has been left out in the open, exposed to the weather. It appears that many of the top hatches have been left open. The entrance accesses have been closed with plywood sheets. It was not apparent if the Living quarters were dismantled. Plans for its restoration and the steps that led up to it can be found in this collectSpace thread.