There's a certain irony in the fact that we often mispronounce the name of the place where we go to find books, and therefore expand our knowledge and understanding. It doesn't stop a lot of us from doing it, though. Like "February", this is a word that suffers because of a stealthy little 'r' hidden away at the core of it.
That big building downtown with all the books in it isn't called a "lie-berry". That's just something you'd call an untruthful fruit, and if your fruit are lying to you then you have bigger problems to face than pronunciation. Because of that sneaky 'r', what you mean to say is "lie-brare-ee". And if you don't believe us, head down to one, borrow a dictionary and look it up. You can thank us for it later.