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|description=Concept art for gigantic pistons in the Air Exchange reactor.
|source=''Half-Life 2 Raising the Bar''
|author=Viktor Antonov
|filespecs=
|licensing={{Fairuse}}
|other versions=
|cat artist=CategoryViktor Antonov images
|cat subject=CategoryAir Exchange images
|cat type=CategoryHalf-Life 2 Raising the Bar imagesCategoryHalf-Life 2 concept art
}}
{{Article|Image}}
{{Information
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|description=The Air Exchange highest tower.
|source=''Half-Life 2 Raising the Bar''
|author=Viktor Antonov
|filespecs=
|licensing={{Gamescreenshot}}
|other versions=
|cat artist=CategoryViktor Antonov images
|cat subject=CategoryAir Exchange images
|cat type=CategoryHalf-Life 2 Raising the Bar imagesCategoryHalf-Life 2 concept art
}}
{{Article|Image}}
{{Information
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|description=Skitch, Alyx's cut pet alien.
|source=''Half-Life 2 Raising the Bar''
|author=Dhabih Eng
|filespecs=
|licensing={{Gamescreenshot}}
|other versions=
FileConcept art eli gordon alyx skitch.jpg|Original image.
|cat artist=CategoryDhabih Eng images
|cat subject=CategorySkitch images
|cat type=CategoryHalf-Life 2 Raising the Bar imagesCategoryHalf-Life 2 concept art
}}
{{Article|Image}}
{{Information
|attention=
|description=Concept art for the early City 17.
|source=''Half-Life 2 Raising the Bar''
|author=Viktor Antonov
|filespecs=
|licensing={{Fairuse}}
|other versions=
|cat artist=CategoryViktor Antonov images
|cat subject=CategoryCity 17 images
|cat type=CategoryHalf-Life 2 Raising the Bar imagesCategoryHalf-Life 2 concept art
}}
{{Article|Image}}
{{Information
|attention=
|description=An early map of Gordon's journeys through City 17. It features two journeys the one at the start of the game (from the trainstation to the Wasteland, with Kleiner's Lab in the middle), and the one at the end, that does not seem to make the Skyscraper the first City 17 location after the journey back from the Arctic locations, since it actually starts in Kleiner's Lab, mirroring Gordon and Alyx's return to the city from the Depot in ''Half-Life 2''.
|source=''Half-Life 2 Raising the Bar''
|author=Eric Kirchmer
|filespecs=
|licensing={{Fairuse}}
|other versions=
|cat artist=CategoryEric Kirchmer images
|cat subject=CategoryCity 17 imagesCategoryCity 17 Trainstation imagesCategoryKleiner's Lab images
|cat type=CategoryHalf-Life 2 Raising the Bar images
}}
{{Article|Image}}
{{Information
|attention=
|description=The Cremator.
|source=''Half-Life 2 Raising the Bar''
|author=Dhabih Eng
|filespecs=
|licensing={{Fairuse}}
|other versions=
FileCremator2.jpg|Original image.
|cat artist=CategoryDhabih Eng images
|cat subject=CategoryCremator images
|cat type=CategoryHalf-Life 2 Raising the Bar imagesCategoryHalf-Life 2 concept artCategoryArticle management tag logos
}}
{{Article|Image}}
{{Information
|attention=
|description=The Cremator.
|source=''Half-Life 2 Raising the Bar''
|author=Dhabih Eng
|filespecs=
|licensing={{Fairuse}}
|other versions=
FileCremator3.jpg|Cropped version.
FileCremator poster.jpg|Based on it.
|cat artist=CategoryDhabih Eng images
|cat subject=CategoryImmolator imagesCategoryCremator images
|cat type=CategoryHalf-Life 2 Raising the Bar imagesCategoryHalf-Life 2 concept art
}}