The remains of the church are able to provide a record of the destructive wars that played out during its history. It is of a baroque design, inspired by the Italian architect Gian Battista Primoli and constructed in sandstone. Over one hundred Guarani workers spent 10 years completing the building and only the tower on the right side was left unfinished. This cathedral still has eleven of the twelve pillars that formed arches together and honoured the twelve apostles of Jesus.