I am blogging this from the Gerstein Science Library, which is perhaps my favorite library on campus. Inside it is a weird mix of Higher Institution and Warehouse; to name just the most memorable instance, the door to the men's bathroom is beautiful, with wood paneling, while the bathroom itself looks like it was built on the model of its gas station cousins. But, of course, I don't go for the decor. It has a great philosophy and history of science section. You can always find the books you want because they are never checked out; and you never have to stand in line to check them out, because no one else is trying to do so. It's not as crowded as the main libraries, so you can always find a place to do work; and it's very quiet because half the students are asleep. Truly, could there be anything better?
UPDATE: For those who are interested, here's Gerstein's website (it has a virtual tour).