Cabildo of Buenos Aires Museum

The Cabildo of Buenos Aires is the colonial-era municipal building on Plaza de Mayo in central Buenos Aires, originally constructed in the 18th century as the seat of the town council.

Built during the Spanish colonial period and modified during the 19th century, the Cabildo served as the local seat of government under Spanish rule and was a focal point for political gatherings in 1810. Over time it was converted into a museum documenting the colonial era and the May Revolution.

Sited on Plaza de Mayo in the San Nicolás barrio of Buenos Aires, directly opposite the Casa Rosada and within the historic central district; it is a short walk from major central metro stations.

• Plaza view: Balcony overlooks Plaza de Mayo and is a popular photographic spot for views across the square.
• Transport: Located within walking distance of Plaza de Mayo metro and Catedral stations, making it easy to combine with nearby sites.

What to See#

• Museum: Houses period rooms, documents and displays covering the colonial government of Buenos Aires and the events of the May Revolution; the museum is open to the public and stages rotating exhibits and educational displays.
• Plaza frontage: Faces Plaza de Mayo and provides direct views toward the Casa Rosada and the Metropolitan Cathedral; the colonial portico and tower remain prominent elements of the building’s exterior.

The Cabildo faces Plaza de Mayo in the Monserrat neighborhood. From the Retiro train/bus hub take the subway (Linea C) to Avenida de Mayo or walk from the Casa Rosada and Catedral - the site is central and easily reached on foot from most downtown points.

• Combine the Cabildo visit with the adjacent Plaza de Mayo and the Casa Rosada for a full morning of Argentine civic history.
• Join a guided tour to access upstairs rooms and the museum's documentary displays and multimedia presentations.
• Visit on a weekday morning when the plaza is quieter and museum staff can provide context on revolutionary artifacts.