San Marcos Cathedral
An iron church assembled in Arica in 1876, traditionally credited to Gustave Eiffel's workshop - an attribution the archives have not confirmed.
Updated 18 October 2026
San Marcos de Arica is built of iron. It was prefabricated, shipped in sections and assembled here in 1876, when Arica was still Peruvian and the town needed a church after earthquakes and the tsunami of 1868 destroyed what stood before - iron being chosen precisely because it would survive the next one. The structure is bolted plate and cast iron throughout, painted, with a gothic idiom rendered in metal. Tradition, and the Spanish-language sources, credit the workshop of Gustave Eiffel in France; other research finds no trace of this in local or French archives and records the cast-iron structure as ordered from the United States by the government of the Peruvian president José Balta. The former customs house on the shore is another prefabricated building often credited to Eiffel.
History
The earthquake of 13 August 1868 brought down the old church, which had stood for 226 years, and a committee of local women asked the Peruvian president, José Balta, for a new cathedral. His government ordered a cast-iron structure that could be shipped easily to Arica, and the new church was inaugurated in 1876 on the site of the old one. English-language research records the order as placed in the United States and finds nothing in local or French archives to support the familiar story of Gustave Eiffel's workshop (Wikipedia, St. Mark's Cathedral, Arica), while Spanish-language sources hold that the parts came from Eiffel's workshops in France in 1875 and were assembled by French technicians; the church was declared a national monument on 4 October 1984 (Spanish Wikipedia, Catedral de San Marcos de Arica).
The main sights
- A church built of iron - prefabricated and bolted together on site.
- Assembled in 1876 - when Arica was still Peruvian.
- Built to survive earthquakes - after the 1868 quake and tsunami.
- The old customs house - another prefabricated building on the shore, also credited to Eiffel.
When to go
Year round. An hour.
Things to know
It is small and takes twenty minutes. Opening hours follow the parish schedule and services take precedence. The plaza around it is busy. The Eiffel attribution is traditional and disputed: no record of it has been found in local or French archives.
Nearby
The Morro rises above the city; the customs house is on the shore.
Key facts
Source: Wikidata, item Q5809081, read on 18 October 2026.
What to pack for San Marcos Cathedral
Chosen from what this place is for. Tap a kit for the full checklist.
- Comfortable walking shoes - Sightseeing means kilometres of pavement and cobbles daily. Find on Amazon
- Modest clothing - Shoulders and knees covered - the single most common requirement. Find on Amazon
- A slim anti-theft daypack - Zips that close properly; keep it in front in crowds and on transit. Find on Amazon
- A scarf or shawl - To cover the head or shoulders on entry; women especially at mosques. Find on Amazon
Some links on this page are Amazon affiliate links - if you buy through them we may earn a small commission at no extra cost to you.
All packing kitsPlan your trip
Where to start if San Marcos Cathedral is going on the list.
Booking links on this page are affiliate links - if you book through them we may earn a small commission at no extra cost to you. It never changes what we write about a place.
Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.


