The Church of St. James the Apostle the Elder in Lubsza is a masonry temple built in the second half of the 14th century or at the turn of the 14th and 15th centuries, replacing a wooden structure. Constructed in the Gothic style with Renaissance details, it utilized local materials such as glacial erratics. The church is plastered and features a prominent two-story tower, with the lower part dating back to the 15th century and the upper, octagonal section added in 1823. The bell tower houses a historic bell from 1536. The interior of the church is adorned with stained-glass windows installed in the 1930s, depicting figures of saints. The charm of the church is enhanced by paintings by the artist Mitski and his daughter, who created the main altar. The church is a site for annual indulgence festivities and celebrates two major feasts each year. In recent years, the hygiene and environmental standards of the facility have been significantly improved with the installation of underfloor heating, solar panels, and energy-efficient lighting. A funeral chapel has been built near the cemetery, and the cemetery itself has been equipped with new pathways and lighting. The church has undergone numerous renovations, including the replacement of pews and the modernization of the surrounding walls. The parish priests, known for their care of the parish, have contributed to its development, among them Fr. Michał Brzoza, who served for 33 years. The church and its surroundings form an important part of the cultural heritage of Lubsza, serving as the center of religious and social life for the community.