{{Article|Image}}
{{Information
|attention=
|description=Unused Central AI Chamber sign.
|source=''Portal 2''
|author=
|filespecs=
|licensing={{Gamescreenshot}}
|other versions=
|cat artist=
|cat subject=CategoryCentral AI Chamber images
|cat type=CategoryPortal 2 textures
}}
{{Article|Image}}
{{Information
|attention=
|description=Extended Relaxation Annex logo. It is seen in the co-op outro video, not in-game.
|source=''Portal 2''
|author=
|filespecs=cropped
|licensing={{Gamescreenshot}}
|other versions=
|cat artist=
|cat subject=CategoryAperture Science Enrichment Center images
|cat type=CategoryPortal 2 textures
}}