Zanjón de Granados: The Best-Kept Underground Secret in Buenos Aires
In the cobblestone streets of San Telmo, one of the oldest neighborhoods in Buenos Aires, lies one of the most fascinating historical experiences in the city: Zanjón de Granados. More than a museum, it is an archaeological journey into the heart of 18th-century Buenos Aires — a network of tunnels, passageways, and remains that reveal how the city was born and evolved over more than 300 years.
This article explains what it is, why it’s so special, how to visit it, and why you should add it to your itinerary if you’re looking to explore the most authentic and hidden side of Buenos Aires.