The brick mass of the parish church dominates the centre of Chojnice. Construction began in the second half of the 14th century under the Teutonic Order, and the church grew steadily over the following two centuries into the substantial hall-church that stands today: three naves of equal height, a steep tile roof, and a tall west tower that doubles as a landmark visible across the surrounding fields.
The interior keeps a number of original Gothic and Renaissance fittings, including a carved high altar, baroque side chapels, and the unusually large 17th-century baptismal font. The pope raised it to the status of minor basilica in 1993. Outside service hours the church is usually open for quiet visits.