The Igreja Matriz dos Santos Cosme e Damião is not a cathedral and has never pretended to be one. It is a low whitewashed box with a squat bell tower, dedicated to the twin physician-saints of the early Church, and its walls have been repaired, replastered and repainted so many times across four hundred and ninety years that almost nothing a visitor touches is original fabric. That is rather the point. Brazil has grander colonial churches by the dozen — Salvador and Olinda are full of them — but this one simply refused to stop being a parish. Mass is still said here. Baptisms still happen. The oldest church in the country is not a ruin under glass; it is a working building in a working town, and on a Sunday morning the difference is obvious.

A short walk separates the parish church from the Franciscan convent of Santo Antônio, begun in 1588. The two buildings anchor opposite ends of the historic core, with the Museu Histórico and the Convento do Sagrado Coração de Jesus filling the ground between them. The convent has not always been a quiet place. During the Praieira revolt of 1848, the last of the great provincial uprisings of imperial Brazil, troops occupied the site. Today it houses the Museu Pinacoteca de Igarassu, whose paintings are considered the most important surviving collection from the Brazilian colonial period — canvases made for congregations rather than collectors, hanging within a few hundred metres of the altars they were painted for.

In 1972 IPHAN listed the historic centre of Igarassu as a national monument, which in Brazilian practice means the street pattern is as protected as the buildings standing on it. The result is a colonial core that has kept its shape: narrow lanes following the contour of the hill, single-storey houses shoulder to shoulder, whitewash and ochre and that particular Pernambucan blue on the window frames. Igarassu sits twenty-seven kilometres north of Recife on the BR-101, close enough that the metropolitan region has grown around it and absorbed most of the farmland in between. Without the listing, the centre would almost certainly have gone the same way.

The wealth that paid for the churches came from cane. Pernambuco's Zona da Mata was the first great sugar frontier in the Americas, and Igarassu sat inside it. The engenho — mill, chapel, big house, and the quarters where the workers were held — was the basic unit of the economy here for three centuries, and that economy ran on enslaved labour, Indigenous at first and then overwhelmingly African. The buildings visitors photograph today were raised on those profits, by those hands. Some of the mills survive as ruins. Engenho Monjope, in the Cruz de Rebouças district off the BR-101, now takes campers among its walls: a gentle afterlife for a place that was not gentle.

Igarassu is nobody's museum village. The 2022 census counted 115,196 residents spread across 305 square kilometres, most of them living in neighbourhoods with nothing colonial about them at all. Itamaracá island lies eighteen kilometres east, across the channel that gave the town its name; Goiana is forty-six kilometres north. Recife's Guararapes airport is under an hour away by road, which is why most visitors arrive as a half-day excursion and leave the same afternoon. Those who stay past four o'clock get the better version — the buses gone, the light turning orange on the church wall, the hill quiet enough that you can hear the bells over the traffic on the highway below.