We found ourselves at the Biblioteca on a Saturday afternoon and found it to be adequate, as libraries go. But I was really hoping for a grand display of books and other libraryish things, but no. It was a rather mundane building, with a small display area and grand hall with tables. I can imagine the space as a lovely and quiet place to study, but as a tourist destination, it just isn't worth the trip. They did have an old card catalogue, which I had to explain to my 16-year-old.