Church of St. Catherine Brodnica

The first evidence of the church is a document from Grand Master Ludolf König from the year 1343, preserved in copy, according to which the former pastor of Strasburg, Nikolaus von Sandomir, laid the cornerstone of the church. The church building is therefore dated between 1310 and 1320. Construction apparently began, as was mostly the case in the Order's territory, with the choir. According to the original plan, a two-story tower hall with a two-tower structure was to be built here in Strasburg, as in Kulm and Kulmsee, on the west side. However, this plan was altered, and only the crenellated southwest tower was executed. The change in plan is possibly related to the construction of the chapel under the south tower and the foundation of a miraculous cross in 1343 by the former pastor Nikolaus.

The Church of St. Catherine is today one of the most architecturally remarkable urban parish churches in the Kulmer Land and features numerous unusual solutions in many respects, such as the west facade, planned with monumental grandeur but only partially completed, the openwork gable of the choir, and the chapel in the tower with a projecting polygon. Based on the existing arch springings and the wall offset in the northern section of the west front, it can be assumed that the lower tower hall was already laid out and built up to this height when the construction plan was changed. The church was the first in the Kulmer Land in which star vaults were extensively erected. The church consists of a three-aisled and four-bay nave and a single-aisled, three-bay choir in the axis of the central nave. On the west side, a massive square tower measuring 8.5 × 8.9 m was erected as an extension of the side aisle. The church is accessible through the main portal in the west front and through the entrances on both long sides of the nave. The walls are built of partly glazed bricks, forming diamond-shaped patterns and with the letters "W" and "V". The brick bond is predominantly Gothic; only the two oldest bays of the choir show a Wendish bond. The choir opens into the central nave with a pointed arch triumphal arch. The nave is divided into three aisles by three pairs of octagonal pillars. The star vaults of the central nave closely match the vault of the choir in their form and execution and in the ornamentation of the wall arches, ribs, and vaults. The cross vaults of the side aisles are pointed with round-arched cross ridges and rest on consoles that are heavily plastered and decorated with simple tracery. The east gable of the nave is simply designed with a few pointed arch blind arches. The main ornament of the entire building is the filigree, playful choir gable to the east. Its construction period may have been as early as 1320, but it was so far ahead of its time that some even considered it a work of Hinrich Brunsberg. The gable is divided by hexagonal bundled pillars into five fields, which are filled with plastered blind arches and crowned with pointed wimpergs. The gable is reminiscent of the older east gable of St. James's Church in Thorn.

Notable are a group of ten apostle sculptures from the second half of the 14th century in the nave and chancel, as well as the crucifixion group from the 16th century. In 2004, during restoration work, a huge mural from the 14th or 15th century was discovered behind the altar.