In terms of definitions a darkride/attraction can include all of the following (PS this also emcompasses funhouses):funhouses, walk-throughs (haunted houses), darkrides, glass houses (mirror mazes), mazes, Old Mill rides (tunnel of love), Noah’s Arks (a rare type of funhouse), mystery shacks (tilted houses), haunted swings, and other illusion attractions. These attractions may be located in amusement parks, carnivals, or fairs. Some full-time stand-alone attractions (I.E. no season Halloween haunted houses) are also included. In more recent times; hybrids are slowly being included. BTM not so much a darkride, but Universal's Mummy even with the coaster as a basis the surprise elements and thematic scheme are considerably closer to a true classic darkride experience.
If any of you have a a serious interest in the preservation of darkrides and funhouses or just have a great appreciation for the art please see this website:
www.dafe.org (DAFE stands for Darkride and Funhouse Enthusiasts).
I am proud to call myself a member.