Palace of the Argentine National Congress
The stone outside marks Kilometre Zero — the point every Argentine highway is measured from.
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A Neoclassical seat of power in white marble, capped by a 3,000-tonne bronze dome weathered green at 80 metres. The Congressional Plaza facing it was designed by urbanist Charles Thays and has drawn crowds — tourists and protesters alike — since its inauguration in 1910. Sculptor Lola Mora's allegorical bronzes and marble works mark both the facade and interior halls.
What to look for
- The green-patinated bronze dome, 80 metres overhead and 3,000 tonnes of oxidized metal supported on an inverted dome foundation 10 metres deep
- The quadriga atop the main entrance, the work of sculptor Victor de Pol
- The Kilometre Zero milestone at Congressional Plaza — origin point for all Argentine national highways
The plaza faces the main facade and is freely accessible; the building sits on the Balvanera–Monserrat border in the informal Congreso neighbourhood.
Palace of the Argentine National Congress 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.