Cabildo de Buenos Aires
For 269 years it was a prison; the same building also became, in 1810, the birthplace of Buenos Aires's first public library.
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Built in 1610 on what is now Plaza de Mayo using port taxes, this colonial town council served as courthouse, jail, and seat of the Viceroyalty of the Río de la Plata all at once. The Buenos Aires prison ran here from 1608 to 1877 — longer than any other tenant. On September 13, 1810, the Primera Junta founded the city's first public library inside these walls.
What to look for
- The Royal Audience chamber, which functioned as the territory's highest appeals court from 1661 until it was replaced by an Appeals Chamber in January 1812
- The prison quarters that held inmates for nearly three centuries before transfer to the National Penitentiary on Las Heras Street in 1877
- The colonial facade on Plaza de Mayo, on the same site Mayor Manuel de Frías chose by proposal on March 3, 1608
Declared National Historic Monument in 1933 and open as a museum since 1938; sits directly on Plaza de Mayo.
Cabildo de Buenos Aires is one of 34 sights worth the detour in Buenos Aires, all bundled offline in Voyage GO — download the Buenos Aires pack and it sits on your map with no signal, filling your travel passport the moment you walk past.
More to see in Buenos Aires
- Mas Monumental Stadium85,018 seats on reclaimed Río de la Plata marshland — the largest stadium in South America, and the ground where a World Cup Final was played.
- La BomboneraThat chocolate-box shape doesn't just look strange — the unusual design gives the bowl its famously excellent acoustics.
- Casa RosadaThe baby-pink paint was a political recipe: mix the Federalists' red with the Unitarians' white, and maybe stop a civil war.
- Teatro ColónAcoustics expert Leo Beranek surveyed leading international opera and orchestra directors and ranked this hall the world's best room for opera — not a slogan, a measured result.
- Oscar and Juan Gálvez Race TrackF1 cars once screamed through the third corner here at 305 km/h, flat out for 40 straight seconds — and the grandstands put you right on top of it.
- Palacio BaroloA 1923 tower mapped floor by floor onto Dante's Divine Comedy — hell at the base, purgatory in the middle, heaven at the top.