We had the good fortune to visit El Ateneo, one of "the most beautiful bookstores in the world," when we were in Buenos Aires last month. We try to frequent bookstores wherever we are, regardless of their setting, nonetheless I was excited to read through the list of The 20 Most Beautiful Bookstores in the World on Flavorwire. I've only been to a few on the list, including Shakespeare & Company in Paris, El Pendulo in Mexico City, and now El Ateneo. How about you? Any that you would add to the list?