Buenos Aires Metropolitan Cathedral: The Complete Visitor Guide
Facing Plaza de Mayo, with the Casa Rosada on one side and the old Cabildo on the other, the Metropolitan Cathedral of Buenos Aires has been the city's religious center for more than four centuries. You don't need to be Catholic for it to be worth the visit -- it's a living record of Argentine history, home to Jose de San Martin's tomb, fifteen years of Jorge Bergoglio's tenure as archbishop, and a facade that's been looking out over the country's most important square for nearly two hundred years.
A history that starts in 1580
When Juan de Garay re-founded Buenos Aires in 1580, he set aside a plot facing the main square for the city's principal church. The first building was modest, made of adobe. Over the centuries there were collapses, fires -- one in 1697 destroyed much of the original structure -- and rebuilds. The version you can visit today began construction in 1752 under Italian architect Antonio Masella, a project that took nearly forty years to finish. In 1865 the church was raised to Metropolitan Cathedral, seat of the Archdiocese of Buenos Aires -- a title it held until 2024, when the primatial see passed to the Cathedral of Santiago del Estero.
The facade with twelve columns
The first thing you see arriving at Plaza de Mayo is the neoclassical facade, with its triangular pediment and colonnade -- twelve columns in total, representing the twelve apostles. French-trained architects Prospero Catelin and Pedro Benoit designed it in 1822, nearly seventy years after construction on the rest of the building had begun. Local tradition says they drew inspiration from the Palais Bourbon in Paris, seat of the French National Assembly -- the resemblance, according to people who've seen both, is hard to miss.
Step inside, and the contrast is total. Where the facade is sober and neoclassical, the interior is baroque and ornate: a gilded main altar with flowing, sinuous Churrigueresque lines, fourteen Stations of the Cross paintings by Italian artist Francesco Domenighini, and a Venetian mosaic floor laid down in 1907.
San Martin's tomb and the changing of the guard
Just past the entrance, on the right, sits the mausoleum of General Jose de San Martin, liberator of Argentina, Chile and Peru. His remains were repatriated from France and arrived in Buenos Aires in 1880; the monument -- the work of French sculptor Albert-Ernest Carrier-Belleuse -- is an imposing Carrara marble ensemble, with the sarcophagus guarded by three female statues representing the three nations San Martin helped liberate.
The tomb has a permanent honor guard from the Regimiento de Granaderos a Caballo, the military unit San Martin himself founded. The changing of the guard happens several times a day, on odd hours between 9am and 5pm, and it's a short but genuinely striking ritual: the guards march out from the Casa Rosada, cross Plaza de Mayo, and relieve their counterparts with near-choreographed precision. If you can time your visit around one of the changeovers, do it -- it's only five minutes, but it adds a whole other dimension to the stop.
The archbishop who became pope
From 1998 until his election as Pope Francis in March 2013, Jorge Bergoglio served as Archbishop of Buenos Aires, with his office next door to this cathedral. In 1999, when a full restoration of the building wrapped up, he was the one who celebrated the reopening mass. Today, in a hall beside the main nave, a small museum is dedicated to those fifteen years -- personal and liturgical items he used during his pastoral ministry in the city, included in the general visit at no extra cost.
Practical info for your visit
The Cathedral is free to visit, Monday through Saturday from 9am to 7pm and Sundays from 10am to 7pm -- though hours can shift on specific dates, so it's worth confirming before you go, especially in November 2026, when the area will see extra activity around Pope Leo XIV's visit to Argentina. It sits right on Plaza de Mayo, a short walk from the Catedral (Line D) and Peru (Line C) subway stations. Guided tours and audio guides are available in several languages -- ask when you arrive.
If you want to keep exploring the Monserrat neighborhood and the rest of the historic center afterward -- the Cabildo, the Manzana de las Luces, the streets where the city was born -- Trevurs has a free audio tour of the area made by people who actually live in Buenos Aires, so you can walk it at your own pace instead of working around a tour schedule.
One church, centuries of history
The Metropolitan Cathedral isn't just Buenos Aires's most important church -- it's where Argentine independence, recent Church history, and the daily life of one of the country's busiest squares all intersect. If you're anywhere near the microcentro for any reason, it's a short stop that earns its place on the list. And if you want to go deeper into the historic center around it, Trevurs has free audio tours of the neighborhood, so the visit doesn't stop at the facade.