140 East Main Street
The Central Branch of the Lexington Public library has some neat stuff. There's a giant pendulum in the main lobby and an art gallery.
In the actual library finding the stairs to get around was a little frustrating (they're in the back of the children's section, I think they could be better marked).
I also liked that they used this giant globe (you can't see how big it in this picture, but it's huge), as an educational tool because it was outdated. I fear that some places would have just thrown it out just because some country borders have changed. Lame!
The above photo is one (!) of the rooms in the library's book sale room. Holy crap! They had so many books for sale, way more than I'm used to seeing in libraries. I mean, most libraries I go in Vancouver have like a shelf or two, but this one had multiple rooms. It was bigger than bookshops I've been to. I picked up a fantasy novel for a dollar. And while selling books isn't the real purpose of libraries, it was still awesome!