Artifact Shop

interesting... but do demons have a non-functional building? they have an unused model of the "order of fire," which consists of two demon statues floating near the Capitol bridge.

Well, judging by the screenshot I posted above, it is also mentioned for Inferno under number 3 (SPECIAL_3).
I think they wanted to create a kind of analogue to the "Chamber of Intrigue," but not based on knowledge, but on witchcraft.