The Ateneo Grand Splendid is a journey through Buenos Aires' cultural history. The building opened in 1919 as a luxurious theatre. It was one of the most important stages in the city, hosting tango legends like Carlos Gardel and other famous artists. Later in the late 1920s, it was converted into a cinema — one of the first in Buenos Aires to show sound films. In 2000, it found new life as a bookstore, but the stunning architecture was carefully preserved. The frescoed ceiling, red velvet curtains, and ornate balconies all remain intact, making it feel like stepping into a dream.