While a model of Skylab is displayed inside, a more complete external mockup is displayed outside in the Rocket Garden. This trainer was used at the Neutral Bouyancy Lab. It has living quarters, airlock, Multiple Docking Adapter (MDA), and Apollo Telescope Mount (ATM) all laying horizontal. The main section of this Skylab is a real rocket stage, S-IV-B 211.
- S-IVB 211
- US Space & Rocket Center, Huntsville, Alabama