Alice in Cyberland

The name says it all, both are based loosely in the famous book or books by Lewis Carroll, Alice In Cyberland is definitely more loosely than Dreamland, that kinda wants to be a sort of sequel to the books, while Cyberland is more inspired by themes characters' names and the aspect of a fantastic world foreign to us. If you want to watch some weird works inspired by Alice In Wonderland that are only an episode long no more than 1 hour, you can go with this. 

This recommendation is because both are old OVAs of one episode. In these shows the setting is going to another world, but not in the sense that is used today (2019). In these 2 OVAs they involved a girl going to another world to save it. Even if they have a bad score I really recommend it cause they aren't "Horrible".