I am trying to portray a very very large building. Like, it takes my character hours to walk down one of the hallways. It's supposed to be a really, really big place. It's also supposed to be believable, considering that he's injured/exhausted/whatever, that he might just plain not be able to make it out on his own power.
Any idea on how to write this without making it boring?
Taken objectively, large spaces are repetitive and thus boring. You have to go subjective. Give the protagonist's impressions.
"He limped down the hallway for what felt like hours. He turned around and looked back. He couldn't tell if he was any further away from one end or any closer to the other. His leg ached. He slumped against a door frame in despair."
Then he starts to hallucinate ....
Lots of recommendations for Blame, hm...
Right now it's pretty much been "oh my god I'm going to die here" for like five thousand words, and the problem is that I don't know if at this point anyone believes him.
I have a similar scene, where a character gets lost in a Fog of Doom for days.
I just used time cuts. I'm not quite sure how that will work out for portraying the "lost in a hopeless vastness" feeling, though. I haven't finished it yet.