Arrive at Retiro Station, the grand Beaux-Arts train terminal whose steel skeleton was shipped over from England and assembled beam by beam on the banks of the Río de la Plata. Your audio guide traces the station's role as the gateway for immigrants beginning new lives in Argentina, and reveals why the neighbouring Torre Monumental — the "Tower of the English" — became a lightning rod for anti-colonial sentiment during the Falklands conflict. Discover the legendary long-distance routes that still link the terminal to Rosario, Córdoba and Tucumán.

Marvel at one of South America's most innovative pedestrian bridges, whose rotating design sparked debate as well as admiration when it first opened. Your audio guide unpacks the passionate debates behind this architectural marvel — from its symbolic tribute to a couple dancing tango to the engineering challenges behind the project. Discover how Puerto Madero transformed from abandoned docklands into some of Latin America's most expensive real estate.

Step inside the unassuming Metropolitan Cathedral on Plaza de Mayo, whose plain Greek-columned façade hides one of Latin America's most ornate interiors. Your audio guide reveals why this cathedral became Argentina's most important Catholic church, and shares the story of José de San Martín's elaborate mausoleum, guarded daily by Granaderos of the regiment he founded. Discover the cathedral's quiet role as the seat of the future Pope Francis during his 15 years as Archbishop of Buenos Aires.

Venture beyond the famous pink façade to discover the palace's most guarded secrets — starting with the competing theories behind its distinctive colour. Your audio guide reveals the old customs-house tunnels excavated beneath the palace, and the rooms where some of Argentina's most consequential decisions were made. Discover the balcony from which Eva Perón famously addressed the crowds in Plaza de Mayo.

Uncover the birthplace of the May Revolution at the colonial town hall where the Open Cabildo of 22 May 1810 debated the fate of the Spanish viceroy. Your audio guide takes you through the heated debates that nearly tore the independence movement apart, the cells that once held the city's prisoners, and how the building was cut back to make way for new avenues. Discover the lingering questions about foreign involvement in Argentina's path to independence.

Journey through Buenos Aires' most enigmatic skyscraper, inspired by Dante's Divine Comedy and said to be laced with masonic symbols most visitors miss. Your audio guide decodes the architecture floor by floor, explaining how its levels correspond to hell, purgatory, and paradise, and shares the legend of the Italian businessman said to have dreamed of bringing Dante's remains to Buenos Aires. Discover the lighthouse at the building's peak and the Southern Cross alignment built into its design.

Stand before Argentina's most iconic monument as your audio guide reveals its frantic 31-day construction and the controversy that nearly saw it demolished three years later. Discover why it stands on the spot where the national flag was first raised in the city, and the time capsule sealed beneath the monument in 1986, to be opened in 2036.

Experience one of the world's greatest opera houses through exclusive backstage stories and the acoustics considered among the finest in the world, without any electronic enhancement. Your audio guide recounts the tragic stories and artistic rivalries behind this legendary stage. Discover the craft workshops beneath the theatre where props and costumes are still made using traditional techniques.

Enter the bookstore National Geographic named the world's most beautiful, housed in a former theatre where tango legends such as Carlos Gardel once performed. Your audio guide reveals the building's years as a theatre, cinema and radio station, and why it was chosen for conversion. Explore the former theatre boxes, now used as reading nooks.

Navigate one of South America's most exclusive eternal neighbourhoods, where Argentina's elite rest among mausoleums grander than most family homes. Your audio guide reveals unsolved family mysteries buried within these marble walls, why Eva Perón's body was moved many times for political reasons before reaching her family tomb here in 1976, and the cemetery's reputation for exclusivity. Discover the 1881 grave robbery in which a wealthy widow's coffin was stolen for ransom.

Immerse yourself in Argentina's premier art collection while uncovering the stories behind its treasures, including the 1980 Christmas heist in which 16 paintings were stolen, three of them later recovered in Paris. Your audio guide points out highlights of the collection, from European masters to Argentine painters.

Witness Buenos Aires' giant metallic flower, its petals designed to open and close with the sun, and discover the engineering behind this kinetic marvel. Your audio guide shares the vision of Argentine architect Eduardo Catalano, who donated it to the city in 2002 as a homage to all flowers. Learn about the hydraulic system and photoelectric cells behind its movement, and the storm damage and repairs it has weathered.

Explore Buenos Aires' green lung, created on land that once belonged to Juan Manuel de Rosas and named after the 1852 battle that ended his rule. Your audio guide points out lesser-known monuments to forgotten heroes. Discover its artificial lakes and the exclusive riding traditions and private clubs that continue among Buenos Aires high society today.

Venture into La Boca's most colourful street, in one of the neighbourhoods where tango was born from the fusion of European immigrant and African rhythms in a musical revolution that once scandalised traditional society. Your audio guide explains why these houses were painted in vivid colours using leftover ship paint, and the tragic love stories behind tango's most famous melodies. Discover how painter Benito Quinquela Martín helped turn the street into an open-air museum in 1959, and the neighbourhood's journey from working-class port district to beloved tourist destination.