The cathedral complex, comprising the church itself, its bell tower, and the parochial house, was built by the Jesuits between 1753 and 1756, in the closing years before the order's expulsion from Spanish America. It rose deep in the Chiquitania, hundreds of dusty kilometers from any colonial city, the work of missionaries and the Chiquitano people they had gathered into the reduction of Concepcion. There was no marble here, no quarried stone. Instead the builders turned to the great hardwoods of the surrounding forest, raising a baroque sanctuary out of carved timber and painted surface, a feat of craftsmanship that drew Europe's architectural language into the materials and skills of the lowland tropics.

Recognition came in the twentieth century, long after the Jesuits had gone. Bolivia declared the cathedral a national monument in 1950, and in 1990 UNESCO inscribed it, together with its sister missions, on the World Heritage List. By then the building had endured generations of decay, the humid lowland climate steadily working at wood and paint. Its survival is owed to the sweeping restoration of the Chiquitos churches led by the Swiss architect Hans Roth, whose decades-long campaign returned these mission sanctuaries to their former glory. Without that work, the cathedral so admired today might have been remembered only in old photographs and faded accounts of vanished splendor.

This is no museum piece kept behind ropes. The cathedral follows the Roman, or Latin, rite and serves as the principal church of the Apostolic Vicariate of Nuflo de Chavez, the Catholic jurisdiction created in 1951 by Pope Pius XII through the bull Ne sacri Pastores. It remains under the pastoral care of a bishop and continues to gather a congregation, just as it has, with interruptions, for more than two and a half centuries. The same carved columns that astonish visiting travelers still frame the prayers of the people of Concepcion. The building is at once a World Heritage monument, a working parish, and the spiritual anchor of a town built around its presence.

What the Jesuits left behind in Concepcion was never only a building. They left a tradition of making, carving, sculpture, and music that the Chiquitano people carried forward through expulsion and the long decline. The town has become a custodian of that inheritance, home to a collection of original instruments and sculptures from the mission era and to the great music archive of the Chiquitania. The cathedral stands at the center of this living heritage, its carved interior the grandest expression of skills that still pass from one generation to the next in the workshops nearby. To enter it is to see, all at once, what indigenous hands and a Swiss missionary's vision made together, and what careful hands have since chosen to save.