The valuable monument of Hrubieszow is a former Uniate Church.
Church of St. Nicholas was built in 1795 - 1828 in the Baroque style by architect named Losy de Losneau. In 1875, it was converted into orthodox Church and in 1922, it was changed again into the filial Church (for school children, ) - Church of St. Stanislaw Kostka. It is a small temple with a low vestibule, annexed later than the main building, the façade is decorated with pilasters and a triangular pediment. The side walls support the massive buttresses, and the roof is topped with a Baroque turret. Nearby there is a stone cross from the seventeenth century, four-sided two-floors bell tower and a wooden rectory. The whole complex is located on a high bank above the Huczwa River.