Satisfy your inner culture lover at Museo de Informatica de la Republica Argentina. Check if any guided tours are available or ask a museum employee to direct you to some of the highlights.
This El Centro museum is a good place to begin your day of sightseeing. There's loads to enjoy in the vicinity, like Obelisco, Colón Theatre, and Casa Rosada. Take your time at Museo de Informatica de la Republica Argentina before heading to these other fine sights.