The Subte (Subterráneos de Buenos Aires) was opened in 1913 as the world's 12th metro system and the first in South America. Its stations and trains still preserve a good deal of the charm of the 'good old time'. Stations are almost free of advertising, the newer ones instead contain a large number of murals.
Photo [unknown origin]: Peru station from 1913 with its cast-iron columns and nostalgic atmosphere.
Polvorin Workshop. After replacing the original rolling stock in 2013, the Polvorin Workshop, originally inaugurated along with Line A, is being transformed into a museum to display artifacts and the former rolling stock of the Subte. The workshop also serves as the storage and restoration area for the Association of Friends of the Tramway, who run a heritage tramway in the neighborhood. Since 1913. Location: Historical workshop. Address: Mitre, 510 Emilio. At Caballito metro station. Hours (check before visiting): Not open to public, except for special occasions like Night of Museums. Reference: Night of Museums 2015, en.wikipedia.org, enelsubte.com.
Beep sound in some of the lines (lines B, C, D). "Próxima estación: 9 de Julio/Carlos Pellegrini (depending on the line you're travelling), combinación con linea B Alem-Los Incas, línea C Constitución-Retiro y linea D Congreso de Tucumán-Catedral".