Sightseeing
El Zanjón de Granados
📍 El Zanjón de Granados, Buenos Aires, Argentina
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4.4/ 5.0
★★★★☆
Introduction
El Zanjón de Granados is an 18th-century colonial house in San Telmo whose restoration uncovered an underground network of tunnels — remains of the early drainage channels ('zanjón') and passages of the young city. Now a museum, it lets visitors descend beneath the house to follow the brick-vaulted tunnels and trace Buenos Aires' earliest urban history.
✨ Highlights
1
Underground tunnels
Walkable brick-vaulted remains of 18th-century drainage and passages.
2
Colonial house
A restored 18th-century home with courtyard, niches and old brickwork.
3
Accidental find
Uncovered in 1985 during restoration — a celebrated case of urban archaeology.
🛈 Practical Info
→Location:Defensa 755, San Telmo, Buenos Aires, Argentina
→Time needed:About 1 hour
→Admission:Guided tours charged (confirm on site)
💡 Tips
• The tunnels are visited with a guide — ask about English tours in advance.
• Underground stays cool, a good option on hot summer days.
• Same block as Plaza Dorrego's Sunday antique fair.
FAQ
Any practical tips for visiting El Zanjón de Granados?
The tunnels are visited with a guide — ask about English tours in advance. Underground stays cool, a good option on hot summer days.





