The Church of St. Demetrius in Ułazów is a former Greek Catholic parish church, built in 1843 on the foundations of an older structure dating back to 1668. Its construction was initiated by the parish priest, Symeon Pleszkiewicz. In the 1990s, the church lost its religious function and has stood abandoned since 1993. In 1890, the building was covered with sheet metal, and in 1900, the interior was adorned with polychrome paintings and the iconostasis was renovated. After World War II, the church was taken over by the Roman Catholic Church, becoming a filial church of the parish in Cieszanów and later of the parish in Niemstów. It was adapted for catechetical purposes and underwent numerous renovations, including repairs after a fire in 1986. Architecturally, the church is an oriented, tripartite log structure, covered with gable roofs and featuring a distinctive bell turret. It houses a five-tiered 19th-century iconostasis, with some icons possibly being older. In the immediate vicinity of the church stands an 18th-century wooden bell tower, which was renovated in 1890 and 1973. Additionally, in front of the church, there is a cross and a boulder commemorating General Józef Kustroń, who died in combat with the German army in September 1939. The Church of St. Demetrius is an important part of the cultural heritage of the region, bearing witness to its rich history and architecture, as well as the evolving religious traditions.