251 Benefit St.
Providence, Rhode Island
The Athanaeum, founded in 1753, is the oldest library in Rhode Island, fourth oldest in the country, and one of the few remaining subscription libraries in the United States.
It's a cool Greek Revival building near RISD, just a block from the RISD museum (more on that later). The current building was designed by William Strickland and built in 1838.
Bear and I spent a happy hour there on Sunday afternoon, and we've brought friends from out of town to enjoy it as well. It's a great old library, crammed full of books and history. But it's not just gathering dust. The Athenaeum recently went wireless. They have new books and materials as well as special collections.