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El Zanjón de Granados: Unearthing Buenos Aires' Hidden Past

Discover Buenos Aires' hidden history at El Zanjón de Granados: Explore underground tunnels and a restored mansion in the heart of San Telmo.

★★★★★4.7 (3692)

El Zanjón de Granados is a captivating archaeological site in the heart of San Telmo, Buenos Aires, revealing layers of the city's history through a network of underground tunnels and restored buildings. Once the site of an early settlement and later a grand mansion, it offers a unique glimpse into the lives of Buenos Aires residents across centuries.

Plan your visit

A brief summary to El Zanjón de Granados

Opening times, essentials, and a few local tips gathered into one calmer, easier-to-scan planning section.

Plan your visit

📍
Defensa 755, Buenos Aires, San Telmo, Comuna 1, Buenos Aires, C1065, AR
Monday
11 am-5 pm
Tuesday
11 am-5 pm
Wednesday
11 am-5 pm
Thursday
11 am-5 pm
Friday
11 am-5 pm
Saturday
11 am-5 pm
Sunday
11 am-5 pm
Eve
From Eve

Know before you go

Hi, I'm Eve. Here are a few practical things to know before exploring El Zanjón de Granados.

Local know-how to help you travel smarter and make the most of every moment.

Book your tour in advance, as reservations are required, especially during peak season.
Wear comfortable shoes for walking on uneven surfaces in the underground tunnels.
Consider combining your visit with a tour of Casa Mínima, the narrowest house in Buenos Aires, located nearby.
Check the official website for tour times and updated admission fees.

Discover more about El Zanjón de Granados

El Zanjón de Granados invites visitors to journey beneath the surface of Buenos Aires and explore its rich and complex past. Located in the historic San Telmo district, this remarkable site encompasses a restored 19th-century mansion and a labyrinth of underground tunnels, sewers, and cisterns dating back to 1730.The story of El Zanjón begins with the first settlement of Buenos Aires by Pedro de Mendoza in 1536, believed to have been situated along the banks of a creek known as El Zanjón de Granados. This waterway, also called the Tercero del Sur, played a vital role in the city's early development. Over time, the settlement evolved, and the creek was enclosed as the city expanded.In the 19th century, a wealthy Spanish family of leather merchants constructed a grand mansion on the site. However, the Yellow Fever epidemic of the 1870s led to the abandonment of the house, which was then transformed into a tenement house (conventillo), housing numerous immigrant families. The building eventually fell into disrepair until it was purchased in 1985 by Jorge Eckstein, who initiated a massive restoration project.During the restoration, workers uncovered a network of forgotten underground tunnels, revealing a hidden history beneath the city. These tunnels, along with foundations, walls, wells, and sewage pits, offer a tangible connection to Buenos Aires' past. Today, El Zanjón de Granados is a popular attraction, offering guided tours in English and Spanish that delve into the city's history, the building's significance, and the lives of its inhabitants.A visit to El Zanjón often includes a tour of the nearby Casa Mínima, the narrowest house in Buenos Aires, providing further insights into the city's architectural heritage.

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    Getting There

    Public Transport

    El Zanjón de Granados is easily accessible by public transport. Take the Subte (Subway) Line C and get off at Independencia Station, which is a 5-10 minute walk away. Alternatively, several bus routes, including 2, 9, 10, 20, 22, 24, 26, 28, 29, 45, and 86, stop within close proximity. A SUBE card is required for all public transport; the card costs ARS 880 as of December 2024 and can be purchased and loaded at Subte stations and kioscos. Bus fares within the city are typically ARS 25-28.

    Walking

    From Plaza de Mayo, walk south along Defensa Street for approximately 15 minutes to reach El Zanjón de Granados. The museum will be on your left at Defensa 755. Enjoy the sights and sounds of San Telmo as you approach.

    Taxi

    Taxis are readily available in Buenos Aires. A short taxi ride from the Microcentro or Puerto Madero to El Zanjón de Granados will typically cost between ARS 3,500 and ARS 4,200 and take only a few minutes. Ensure the taxi is licensed and the meter is running. Uber is also an option, though availability may vary.

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