The Dome is just a shell, 160 ft diameter, 65 ft tall. In the early 80's there were three, two story buildings inside, housing the galley, bar, communications, library, post office/store and dormitory style rooms. The archways extending to the right and left held one story buildings. The medical building, the power plant, gym, garage, cargo operations and fuel storage. To give you an idea of scale, the entry is about 15 ft tall, enough for tractors to drive in with cargo and supplies.