Ok, I know I'm a little late coming in, but as I was reading about all this stuff, I had some good ideas.
There is an public library in town. It's a rectangular building, long side to the street. Windows line the front of it, with a door to the far right end. As you walk in, you notice a counter to your right, facing left to the rest of the library, and an odd looking, mismatched leather couch in front of you. To your left are two long rows of bookshelves, getting dustier and older the farther left you go. Somewhere there is a girl sitting by a book shelf, to engrossed in her book to notice you. As you look back to the counter, you notice a sign by the till, telling you that you get and stamp your own books, and that if you steal, damage, or are late on any books, you will 'join the couch'. There are stairs behind the counter you are not allowed to climb, probably leading to the store owner's living area. You exit the store, hearing the bell chime as you leave.
The library was built way before the 1920s, though the exact date is unknown. It may have been an old meeting building, or someone's home with the walls ripped out, a school, or maybe it was always a library. The owner found it abandoned, with the books already there, and simply added the till, couch, and started living upstairs. No one had told her the history behind the building, if there is even anyone that knows.
And that's all that I got. I was thinking of making the dustier older sections more eerie and creepy the farther you go, maybe a little blood splattered, but I'll leave that up to Grim. You can also place where you like, I don't really care where it goes.
Christian, Furry, A Little Weird, but Awesome
Jude Verse 2: May mercy, peace, and love be multiplied to you.