Sights · Our pick in Buenos Aires
El Zanjón de Granados
Four centuries underground
Tunnels and cisterns beneath a 19th-century San Telmo mansion, by guided tour.
Photo Credit
In the area: The stage of the Teatro Colón, framed by red velvet curtains and gilded boxes. Image courtesy of © Mauricio V. Genta · CC BY-SA 4.0 via Wikimedia CommonsAbout El Zanjón de Granados
El Zanjón, at Defensa 755, stands on the seventh and last block to the south of the city founded in 1580, where a stream once ran down to the river. Restoring the Italianate house in the 1980s, its owner uncovered tunnels that channelled the stream, cisterns, wells and remains of buildings from 1700, 1740 and 1830: today the City calls it its most important archaeological recovery. Visits are by guided tour; book on elzanjon.com.ar.
Our take
- Guided tours
- Tunnels and cisterns
- Book ahead
- Address
- Defensa 755, San Telmo, Buenos Aires
San Telmo, Buenos Aires - Phone & reservations
- +54 11 7078-1542
- Website
- elzanjon.com.ar
Opening hours, prices and seasonal openings change, so please check with El Zanjón de Granados before you go.
Last checked: October 2026 How we choose
Location
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