From the document: > The world of Diablo will have a dark, evil tone. Initial levels will be set in an abandoned Gothic church. A marble mausoleum and progress

From the document: > The world of Diablo will have a dark, evil tone. Initial levels will be set in an abandoned Gothic church. A marble mausoleum and progressively darker, dingier crypts and catacombs follow. As someone who has been down in the crypt of an abandoned Victorian Gothic church, I can confirm that they definitely do not look like the level in Diablo does!