Did you know that you can visit the National Congress of Argentina? That big Beaux-Arts building with the green dome near Avenida de Mayo. Follow a free guided tour in English and explore the inside of the Congress in Buenos Aires. This impressive building, inaugurated in 1906, is home to the Senate and the Chamber of Deputies, where Argentina’s most important laws and decisions are debated and approved.

Read more: Explore Buenos Aires in 3 days – full guide

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How to Visit Congress of Argentina

Not many travelers know that they can visit the National Congress of Argentina. From the outside, this Beaux-Arts masterpiece is already breathtaking, with its towering green dome and grand façade. But have you ever wondered what it looks like inside? The good news is that you don’t have to stay curious, you can step inside and explore the very halls where Argentina’s most important decisions are made. Below, I’ll explain how to get your free entry tickets to the Congress in Buenos Aires and make the most of your visit.

Visit National Congress Argentina Buenos Aires

Chamber of deputies of Argentina

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What’s inside the Congress of Argentina?

As you walk through its halls, you will see grand marble staircases, huge chandeliers, and intricate stained-glass windows. You will visit the Chamber of Deputies and the Senate, where lawmakers debate and approve Argentina’s laws.

You will stand beneath the Dome Hall, right under the green dome, and admire the massive 3,000 kg chandelier below it.

During the tour of the Congress of Buenos Aires, which includes an English group, you will learn about Argentine political history and how its system works.

Visit Senate Argentina

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How to get free entrance tickets?

Guided tours of the National Congress of Argentina are available from Monday to Friday at 10:00, 12:00, 14:00, 16:00, and 17:00. 

The tour is free, but you must reserve in advance since each group has a 40-person limit. You can’t select the language when booking, but staff will divide groups into English and Spanish when the tour starts.

Reserve your tickets here.

If the Senate or Congress holds a session, they cancel the tour, sometimes without prior notice. In January, the government takes a political holiday, so tours are more likely to run without interruptions.

Bring your ID or passport to enter, and make sure not to forget it before heading to the Congress. Book your spot in advance and explore one of Buenos Aires’ most impressive buildings from the inside, The Congress in Buenos Aires!

Square with Congress of Argentina