Librería El Ateneo Grand Splendid, a gorgeous converted movie palace, you can take a break in one of the theater boxes, now as reading rooms. But be quick about it — El Ateneo is one of the most famous (and popular) bookstores in Argentina.
Lello & Irmao in Porto, Portugal. The Top 10 Most Beautiful Bookstores in the World. It opened in 1906 and features stunning Art Deco woodwork, a stained glass ceiling, and ornate shelving with a dramatic staircase up the center of the store.