The Most Beautiful Buildings in South America
9 places in 5 countries · updated 13 October 2026
In short: By our ranking, the most beautiful buildings in South America are Teatro Colón (Argentina), Museum of Tomorrow (Brazil) and Amazon Theatre (Brazil). The list covers 9 buildings in 5 countries. Brazil has the most, with 4. Last updated 13 October 2026.
South America's great buildings follow its booms. Fortunes made from rubber, beef, grain and coffee at the turn of the twentieth century were spent on opera houses, reading rooms and theatres built to European models, often with marble, iron and glass shipped across the Atlantic. A few decades later the continent became a heartland of modern architecture, where Oscar Niemeyer and Carlos Raúl Villanueva gave concrete curves and colour a tropical scale.
Teatro Colón in Buenos Aires, opened in 1908, is renowned as one of the finest opera houses in the world for its acoustics. In Manaus, deep in the Amazon, the Amazon Theatre was built at the height of the rubber boom and crowned with a dome of glazed tiles in the colours of the Brazilian flag. El Ateneo Grand Splendid in Buenos Aires turned a 1919 theatre into a bookshop, with the stage now a café, and the Royal Portuguese Cabinet of Reading in Rio de Janeiro holds its tiers of books under a neo-Manueline ceiling of carved wood and stained glass.
The modern buildings are just as distinctive. The Niterói Contemporary Art Museum, by Niemeyer, rises like a saucer from a reflecting pool above Guanabara Bay, and across the water Santiago Calatrava's Museum of Tomorrow stretches its cantilevered roof along Rio's port. The Aula Magna of the Central University of Venezuela hangs Alexander Calder's floating acoustic clouds over its hall. Casapueblo, the whitewashed artist's house built by Carlos Páez Vilaró, climbs a cliff in Uruguay, and the Termas Geométricas in Chile thread red wooden walkways and hot pools through a forested ravine.
In this list
| # | Place | Type | Country | UNESCO |
|---|---|---|---|---|
| 1 | Teatro Colón | Opera house | Argentina | |
| 2 | Museum of Tomorrow | Science museum | Brazil | |
| 3 | Amazon Theatre | Opera house | Brazil | |
| 4 | El Ateneo Grand Splendid | Theatre building | Argentina | |
| 5 | Royal Portuguese Cabinet of Reading | Library building | Brazil | |
| 6 | Casapueblo | Museum | Uruguay | |
| 7 | Niterói Contemporary Art Museum | Museum | Brazil | |
| 8 | Aula Magna | Theatre building | Venezuela | |
| 9 | Termas Geométricas | Thermal bath | Chile |
01 Teatro Colón
Argentina · 4.7 km from Buenos Aires34.601° S 58.383° W
EEJCC · CC0 Construction dragged on for years and passed through three architects. Francesco Tamburini drew up the design and died in 1891; his pupil Vittorio Meano carried it on until he was murdered in 1904; the Belgian Jules Dormal completed it and gave the decoration a stronger French accent.
Did you know? The first Teatro Colón of 1857 had a separate gallery set aside for people in mourning.
02 Museum of Tomorrow
Museu do Amanhã
Brazil · 3.7 km from Rio de Janeiro22.894° S 43.179° W
Image by LyraSid from Pixabay The long, low building covers some 15,000 square metres, set in about 30,000 square metres of gardens, reflecting pools and a cycle path on the old pier. Its roof carries great steel fins that move like wings through the day, following the sun and carrying solar panels; water from the bay is used to cool the interior and then returned through the pools.
Did you know? The main exhibition holds more than 40 experiences in Portuguese, Spanish and English, and received 234 content updates in its first year and a half.
03 Amazon Theatre
Teatro Amazonas
Brazil · 4.3 km from Manaus3.130° S 60.023° W
Karine Hermes · CC BY-SA 4.0 From the square outside the eye goes first to the dome, covered in some 36,000 glazed ceramic scales in green, blue and gold, the colours of the Brazilian flag. The theatre rises above the Largo de São Sebastião, and the square is part of the show.
Did you know? Columns in the auditorium are topped by masks honouring playwrights and composers, among them Aristophanes, Molière, Rossini, Mozart and Verdi.
04 El Ateneo Grand Splendid
Argentina · 3.9 km from Buenos Aires34.596° S 58.394° W
Roberto Fiadone · CC BY-SA 3.0 The building was designed by the architects Peró and Torres Armengol in an eclectic style for the impresario Max Glücksmann and opened as the Teatro Gran Splendid in May 1919, with caryatids by the sculptor Troiano Troiani. The house seated 1,050 and became a stage for tango: Carlos Gardel, Francisco Canaro, Roberto Firpo and Ignacio Corsini all performed here.
Did you know? Carlos Gardel began recording for the Nacional Odeón label in 1920 in a studio Glücksmann set up inside the building; the room survives but is closed to the public.
05 Royal Portuguese Cabinet of Reading
Real Gabinete Português de Leitura
Brazil · 3.1 km from Rio de Janeiro22.905° S 43.182° W
Stegop · CC BY-SA 4.0 The institution was founded in 1837 by Portuguese immigrants, as the first association of their community in the city, to keep their language and literature alive far from home. The present building was put up between 1880 and 1887 to designs by the architect Rafael da Silva e Castro. Emperor Pedro II laid the first stone, and Princess Isabel and her husband opened it.
Did you know? Medallions on the façade portray four Portuguese writers: Fernão Lopes, Gil Vicente, Alexandre Herculano and Almeida Garrett.
06 Casapueblo
Uruguay · 7.8 km from Maldonado34.909° S 55.045° W
Talkingheads · CC BY-SA 3.0 Visitors often compare the white mass to the cliff villages of Santorini, but Páez Vilaró had a local model in mind: the mud nest of the rufous hornero, the ovenbird found across Uruguay. The walls are cement and stucco, shaped by hand and left white, and the building grew year by year in directions nobody could have predicted.
Did you know? Its spaces also include a Terrace of the Mermaid, a Hippocampus Lookout and a café called the Tavern of the Green Ray.
07 Niterói Contemporary Art Museum
Museu de Arte Contemporânea de Niterói
Brazil · 3.5 km from Niterói22.908° S 43.126° W
Image by guertzen from Pixabay The museum was completed in 1996, when Niemeyer was already in his late eighties, and designed with the structural engineer Bruno Contarini, a longtime collaborator. The building is about 16 metres tall, with a cupola some 50 metres across holding three floors of space. Its base sits in a reflecting pool of 817 square metres, which Niemeyer compared to a flower — the pool doubling the white form and making the thin support seem even thinner.
Did you know? The museum opened on 2 September 1996 and quickly became the best-known symbol of Niterói.
08 Aula Magna
Venezuela · 3.4 km from Caracas10.491° N 66.891° W
Caracas1830 · CC BY 3.0 The hall was designed by the Venezuelan architect Carlos Raúl Villanueva as the centrepiece of the University City of Caracas, his vast modernist campus in which architecture, painting and sculpture were meant to be fused into a "synthesis of the arts". The Danish firm Christiani & Nielsen built it at remarkable speed, between November 1952 and March 1953.
Did you know? Even the seats were designed for sound, upholstered in wool with perforated cushions that fold back automatically.
09 Termas Geométricas
Chile · 39.3 km from Villarrica39.502° S 71.875° W
Falk2 · CC BY-SA 4.0 The water comes from dozens of natural springs that emerge in the ravine at around 80°C and are led, without filtering, into the pools, where it has cooled to somewhere between about 35 and 46°C. Different sources give the number of pools as seventeen or twenty, spread along the walkway so that each feels almost private.
Did you know? Next to the pools stand small pavilions with grass-planted roofs, and a large grass-roofed shelter gathers bathers around an open fire.
How this list is ranked
Places are chosen for how they look, not for how famous they are: each one has its own description and a photograph credited to its author. The order is a single world ranking that weighs the beauty of the place in curated photography together with how widely it is documented — the number of language editions of its encyclopedia article and how often that article is read in a year. The list is rebuilt as places are added, so the order and the counts on this page are always current.
Questions people ask
- What are the most beautiful buildings in South America?
- On our list, Teatro Colón (Argentina) ranks first, followed by Museum of Tomorrow (Brazil) and Amazon Theatre (Brazil).
- Which country has the most buildings in South America?
- In our collection, the most come from Brazil (4), Argentina (2) and Chile (1).
- Why is there an opera house in the middle of the Amazon?
- The Amazon Theatre in Manaus was built during the rubber boom of the late nineteenth century, when Manaus was one of the wealthiest cities in Brazil. It opened in 1896, using materials such as Italian marble and French ironwork brought up the Amazon River.
- What are the clouds in the Aula Magna of Caracas?
- They are the Acoustic Clouds by the American sculptor Alexander Calder, large coloured panels suspended from the ceiling and walls of the auditorium. They were designed together with acousticians and help give the hall its sound.
- Who designed the Niterói Contemporary Art Museum?
- Oscar Niemeyer, the Brazilian architect of Brasília. The museum, completed in 1996, stands on a cliff above Guanabara Bay with a view across to Rio de Janeiro.
- How many buildings are on this list in South America?
- The list covers 9 buildings in 5 countries. Brazil has the most, with 4.