Looking for a map.

[AGS]

I've just read up about the skyscraper that was in Half-Life 2 during early development.

There weere two versions. There was one that looks like a normal skyscraper, then one that looks kinda like a museum
I know someone already made the "museum" version, but is there a map that's based off the other version?

[IMG]http://img1.wikia.nocookie.net/__cb20100227142947/half-life/en/images/c/c4/Vertigo_large.jpg[/IMG]
[B]I'm looking for something like this.[/B]