If you're a bookworm, you should consider visiting one of the most beautiful bookstores in the world! Even if you're not interested in buying books, visiting this shop housed in a former theatre is a must. The interior lost none of its magnificence since its theatre days and the ever-present bookcases give it a magical feel.
Wikipedia https://en.wikipedia.org/wiki/El_Ateneo_Grand_Splendid
Email splendid@elateneo.com
Phone +54 11 4811 6104
Address Avenida Santa Fe 1860, Buenos Aires, Argentina
Coordinates -34°35'45.527" N -58°23'39.344" E