We're not sure what constitues a mile of books — there's several ways you could calculate that — but we are sure that when the Strand Book Store says they have 18 miles of books, they're mean a lot. Opened in 1927 and still owned by the same family, this Greenwich Village is the only remaining survivor of the city's previously thriving Book Row. Inside, you'll find over 2.5 million new, used, rare, and out-of-print books, covering topics as diverse as cooking and the occult. With a friendly, knowledgeable staff and good prices, it's a must-see for any bookworm.